Common Weakness Enumeration

CWE-1333

Allowed

Inefficient Regular Expression Complexity

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.

890 vulnerabilities reference this CWE, most recent first.

CVE-2026-109563 (GCVE-0-2026-109563)

Vulnerability from cvelistv5 – Published: 2026-10-12 20:55 – Updated: 2026-10-12 20:55
VLAI
Title
N3.js before 2.11.1 ReDoS via N3Lexer Numeric-Literal Regex
Summary
N3.js before 2.11.1 contains a regular expression denial of service vulnerability in the N3Lexer number pattern that backtracks quadratically on long digit runs. Attackers can supply untrusted Turtle or N3 input containing long runs of digits that do not end a number, blocking the Node.js event loop and causing denial of service.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5802 records in the last 180 days details
References
Impacted products
Vendor Product Version
rdfjs N3.js Affected: 0 , < 2.11.1 (semver)
Unaffected: 2.11.1 (semver)
Create a notification for this product.
Date Public
2026-10-04 00:00
Credits
Mohammed Arfath A
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/n3",
          "product": "N3.js",
          "repo": "https://github.com/rdfjs/N3.js",
          "vendor": "rdfjs",
          "versions": [
            {
              "lessThan": "2.11.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2.11.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Mohammed Arfath A"
        }
      ],
      "datePublic": "2026-10-04T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "N3.js before 2.11.1 contains a regular expression denial of service vulnerability in the N3Lexer number pattern that backtracks quadratically on long digit runs. Attackers can supply untrusted Turtle or N3 input containing long runs of digits that do not end a number, blocking the Node.js event loop and causing denial of service."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-12T20:55:16.880Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Pull Request #760",
          "tags": [
            "issue-tracking",
            "patch"
          ],
          "url": "https://github.com/rdfjs/N3.js/pull/760"
        },
        {
          "name": "Patch Commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/rdfjs/N3.js/commit/b1c497fddb02c4772d61916bd2634115f45f424d"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/rdfjs/N3.js"
        },
        {
          "name": "VulnCheck Advisory: N3.js before 2.11.1 ReDoS via N3Lexer Numeric-Literal Regex",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/n3-js-before-2.11.1-redos-via-n3lexer-numeric-literal-regex"
        }
      ],
      "title": "N3.js before 2.11.1 ReDoS via N3Lexer Numeric-Literal Regex",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-109563",
    "datePublished": "2026-10-12T20:55:16.880Z",
    "dateReserved": "2026-10-12T19:27:52.560Z",
    "dateUpdated": "2026-10-12T20:55:16.880Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-109295 (GCVE-0-2026-109295)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:04 – Updated: 2026-10-12 16:04
VLAI
Title
Open WebUI 0.11.0 before 0.11.4 ReDoS via grep_knowledge_files Event Loop
Summary
Open WebUI from 0.11.0 before 0.11.4 contains a regular expression denial of service vulnerability that allows authenticated users to stall server workers via file search patterns. Attackers can instruct the model to call grep_knowledge_files or grep_chat_files with a catastrophically backtracking regex, blocking the event loop for two seconds per repeated call.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5802 records in the last 180 days details
References
Impacted products
Vendor Product Version
open-webui open-webui Affected: 0.11.0 , < 0.11.4 (semver)
Unaffected: 0.11.4 (semver)
    cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-27 00:00
Credits
yousif-IQ Classic298
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:pypi/open-webui",
          "product": "open-webui",
          "vendor": "open-webui",
          "versions": [
            {
              "lessThan": "0.11.4",
              "status": "affected",
              "version": "0.11.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "0.11.4",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "0.11.4",
                  "versionStartIncluding": "0.11.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "yousif-IQ"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Classic298"
        }
      ],
      "datePublic": "2026-09-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Open WebUI from 0.11.0 before 0.11.4 contains a regular expression denial of service vulnerability that allows authenticated users to stall server workers via file search patterns. Attackers can instruct the model to call grep_knowledge_files or grep_chat_files with a catastrophically backtracking regex, blocking the event loop for two seconds per repeated call."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-12T16:04:54.739Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-gfjp-5hc9-852r)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-gfjp-5hc9-852r"
        },
        {
          "name": "VulnCheck Advisory: Open WebUI 0.11.0 before 0.11.4 ReDoS via grep_knowledge_files Event Loop",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/open-webui-0.11.0-before-0.11.4-redos-via-grep-knowledge-files-event-loop"
        }
      ],
      "title": "Open WebUI 0.11.0 before 0.11.4 ReDoS via grep_knowledge_files Event Loop",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-109295",
    "datePublished": "2026-10-12T16:04:54.739Z",
    "dateReserved": "2026-10-12T14:12:52.833Z",
    "dateUpdated": "2026-10-12T16:04:54.739Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-107572 (GCVE-0-2026-107572)

Vulnerability from cvelistv5 – Published: 2026-10-08 11:46 – Updated: 2026-10-08 17:35
VLAI
Title
Inefficient Regular Expression Complexity in hMailServer
Summary
Inefficient complexity in the Sieve filter evaluation of Progressive Robot hMailServer 6.2.24 through 6.3.5 allows an authenticated account holder to make the mail services unavailable with their own filter. A ':matches' pattern was matched by a backtracking descent whose time grew with the matched value's length raised to the number of wildcards, so a pattern such as '*a*a*a*b' over 800 characters took 44 seconds; and 'deleteheader' erased the fields it removed one at a time, so removing many fields of one name over a message's header cost O(N^2) (80,000 fields took 18.8 seconds). Sieve filters run on the small, shared delivery thread pool, so an account holder whose active script does this, fed a few messages they can send themselves, empties the pool and stops delivery for the whole server. The script is the account holder's own and cannot be set for another user.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 17:35 UTC
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
GitLab CNA under the mitre root
CNA scorecard C 75/100 over 312 records in the last 180 days details
References
Impacted products
Vendor Product Version
Progressive Robot Ltd hMailServer Affected: 6.2.24 , < 6.3.6 (semver)
Create a notification for this product.
Credits
Found in the hMailServer project's own security review (Progressive Robot Ltd)
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-107572",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T17:35:04.470485Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-08T17:35:21.719Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "hMailServer",
          "repo": "https://gitlab.com/hmailserver/hmailserver",
          "vendor": "Progressive Robot Ltd",
          "versions": [
            {
              "lessThan": "6.3.6",
              "status": "affected",
              "version": "6.2.24",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Found in the hMailServer project\u0027s own security review (Progressive Robot Ltd)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Inefficient complexity in the Sieve filter evaluation of Progressive Robot hMailServer 6.2.24 through 6.3.5 allows an authenticated account holder to make the mail services unavailable with their own filter. A \u0027:matches\u0027 pattern was matched by a backtracking descent whose time grew with the matched value\u0027s length raised to the number of wildcards, so a pattern such as \u0027*a*a*a*b\u0027 over 800 characters took 44 seconds; and \u0027deleteheader\u0027 erased the fields it removed one at a time, so removing many fields of one name over a message\u0027s header cost O(N^2) (80,000 fields took 18.8 seconds). Sieve filters run on the small, shared delivery thread pool, so an account holder whose active script does this, fed a few messages they can send themselves, empties the pool and stops delivery for the whole server. The script is the account holder\u0027s own and cannot be set for another user."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-08T11:46:41.080Z",
        "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "shortName": "GitLab"
      },
      "references": [
        {
          "url": "https://gitlab.com/hmailserver/hmailserver/-/work_items/75"
        },
        {
          "url": "https://gitlab.com/hmailserver/hmailserver/-/releases/v6.3.6"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to hMailServer 6.3.6, which matches a \u0027:matches\u0027 pattern by placing each piece once (time linear in the value times the pattern) and removes \u0027deleteheader\u0027 fields in one pass. Until then, review active Sieve scripts for \u0027:matches\u0027 patterns with several wildcards and for \u0027deleteheader\u0027, and lower the maximum message size."
        }
      ],
      "title": "Inefficient Regular Expression Complexity in hMailServer"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
    "assignerShortName": "GitLab",
    "cveId": "CVE-2026-107572",
    "datePublished": "2026-10-08T11:46:41.080Z",
    "dateReserved": "2026-10-08T10:51:25.637Z",
    "dateUpdated": "2026-10-08T17:35:21.719Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-107290 (GCVE-0-2026-107290)

Vulnerability from cvelistv5 – Published: 2026-10-08 16:09 – Updated: 2026-10-09 15:15
VLAI
Title
Pydantic AI: Event loop blocked by quadratic title extraction in `web_fetch`
Summary
Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 1.77.0 until 1.107.6 and 2.44.0, the local web_fetch_tool and the WebFetch local fallback process server-controlled responses with quadratic title extraction, whitespace normalization, and ordered-list numbering. An attacker-controlled page of modest size can therefore block the event loop for an extended period, stalling other agent runs and requests, while unsupported codecs or excessive HTML or JSON nesting can abort an individual run. This issue is fixed in versions 1.107.6 and 2.44.0.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 20:23 UTC
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7566 records in the last 180 days details
References
Impacted products
Vendor Product Version
pydantic pydantic-ai Affected: >= 1.77.0, < 1.107.6
Affected: >= 2.0.0b1, < 2.44.0
Create a notification for this product.
pydantic pydantic-ai-slim Affected: >= 1.77.0, < 1.107.6
Affected: >= 2.0.0b1, < 2.44.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-107290",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T20:23:20.403829Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-09T15:15:26.958Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "pydantic-ai",
          "vendor": "pydantic",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.77.0, \u003c 1.107.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0b1, \u003c 2.44.0"
            }
          ]
        },
        {
          "product": "pydantic-ai-slim",
          "vendor": "pydantic",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.77.0, \u003c 1.107.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0b1, \u003c 2.44.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 1.77.0 until 1.107.6 and 2.44.0, the local web_fetch_tool and the WebFetch local fallback process server-controlled responses with quadratic title extraction, whitespace normalization, and ordered-list numbering. An attacker-controlled page of modest size can therefore block the event loop for an extended period, stalling other agent runs and requests, while unsupported codecs or excessive HTML or JSON nesting can abort an individual run. This issue is fixed in versions 1.107.6 and 2.44.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-08T16:09:04.272Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-fpf4-vwcp-v4hp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-fpf4-vwcp-v4hp"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/pull/8397",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/pull/8397"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/pull/8399",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/pull/8399"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/pull/8418",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/pull/8418"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/pull/84332",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/pull/84332"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/pull/8434",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/pull/8434"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/commit/2faa6181d8a17d83bc9516d035c5270db8730fa0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/commit/2faa6181d8a17d83bc9516d035c5270db8730fa0"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/commit/9cdc952e4c3319e85a3e04f2de49fbbb765bd38b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/commit/9cdc952e4c3319e85a3e04f2de49fbbb765bd38b"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/commit/a93ea5226be1e93ae13131ae3f22287190411389",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/commit/a93ea5226be1e93ae13131ae3f22287190411389"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/commit/c3fd1cc1f15fdbf750d78e4e3ec1e8b4d6a3d920",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/commit/c3fd1cc1f15fdbf750d78e4e3ec1e8b4d6a3d920"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/commit/fb92ccfc3ca2735dab877e2ed73856681bf72ad1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/commit/fb92ccfc3ca2735dab877e2ed73856681bf72ad1"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.6"
        },
        {
          "name": "https://github.com/pydantic/pydantic-ai/releases/tag/v2.44.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/pydantic-ai/releases/tag/v2.44.0"
        }
      ],
      "source": {
        "advisory": "GHSA-fpf4-vwcp-v4hp",
        "discovery": "UNKNOWN"
      },
      "title": "Pydantic AI: Event loop blocked by quadratic title extraction in `web_fetch`"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-107290",
    "datePublished": "2026-10-08T16:09:04.272Z",
    "dateReserved": "2026-10-07T15:53:23.586Z",
    "dateUpdated": "2026-10-09T15:15:26.958Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-106454 (GCVE-0-2026-106454)

Vulnerability from cvelistv5 – Published: 2026-10-06 19:55 – Updated: 2026-10-07 16:26
VLAI
Title
Twisted: IMAP wildcardToRegexp() ReDoS
Summary
Twisted is an event-based framework for internet applications, supporting Python 3.6+. In 25.5.0 and earlier, wildcardToRegexp() in twisted/mail/imap4.py translates the IMAP asterisk and percent wildcards but passes all other characters from an authenticated client's LIST or LSUB pattern directly to re.compile(), allowing nested or otherwise expensive regular expression constructs to cause catastrophic backtracking when matched against mailbox names. Because Twisted uses a cooperative single-threaded reactor, the blocking match suspends all server input and output for the duration of the match. No fixed release is available as of this review.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 16:25 UTC
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7566 records in the last 180 days details
References
Impacted products
Vendor Product Version
twisted twisted Affected: <= 25.5.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-106454",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T16:25:51.139114Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T16:26:14.095Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/twisted/twisted/security/advisories/GHSA-8pqf-f4m5-798g"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "twisted",
          "vendor": "twisted",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 25.5.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Twisted is an event-based framework for internet applications, supporting Python 3.6+. In 25.5.0 and earlier, wildcardToRegexp() in twisted/mail/imap4.py translates the IMAP asterisk and percent wildcards but passes all other characters from an authenticated client\u0027s LIST or LSUB pattern directly to re.compile(), allowing nested or otherwise expensive regular expression constructs to cause catastrophic backtracking when matched against mailbox names. Because Twisted uses a cooperative single-threaded reactor, the blocking match suspends all server input and output for the duration of the match. No fixed release is available as of this review."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T19:55:36.523Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/twisted/twisted/security/advisories/GHSA-8pqf-f4m5-798g",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/twisted/twisted/security/advisories/GHSA-8pqf-f4m5-798g"
        },
        {
          "name": "https://github.com/twisted/twisted/pull/12788",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/twisted/twisted/pull/12788"
        },
        {
          "name": "https://github.com/twisted/twisted/commit/2f8a3c29246f4eb324690e06a9767a11dc4aec9f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/twisted/twisted/commit/2f8a3c29246f4eb324690e06a9767a11dc4aec9f"
        }
      ],
      "source": {
        "advisory": "GHSA-8pqf-f4m5-798g",
        "discovery": "UNKNOWN"
      },
      "title": "Twisted: IMAP wildcardToRegexp() ReDoS"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-106454",
    "datePublished": "2026-10-06T19:55:36.523Z",
    "dateReserved": "2026-10-06T16:49:40.591Z",
    "dateUpdated": "2026-10-07T16:26:14.095Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-106104 (GCVE-0-2026-106104)

Vulnerability from cvelistv5 – Published: 2026-10-06 17:14 – Updated: 2026-10-09 01:18
VLAI
Title
Quasar Framework: Super-linear regex backtracking on User-Agent lets one request stall a Quasar SSR server
Summary
Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.23.3, Platform.parseSSR() passed an unbounded User-Agent request header to getMatch() in ui/src/plugins/platform/Platform.js, whose browser-detection expressions combined greedy captures with repeated unbounded scans. Platform belongs to autoInstalledPlugins, so this parsing occurs before routing for every SSR request. A crafted unauthenticated request containing repeated version tokens without a terminating Safari token causes super-linear backtracking and blocks the Node.js event loop, delaying every other SSR request. SPA, PWA, Electron, Cordova, Capacitor, browser-extension, and static-site-generation targets are not affected because they do not parse an attacker-controlled request header through this path. This issue is fixed in version 2.23.3.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 01:18 UTC
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7566 records in the last 180 days details
References
Impacted products
Vendor Product Version
quasarframework quasar Affected: < 2.23.3
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-106104",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-09T01:18:25.846526Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-09T01:18:50.675Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-68jq-fhch-4xq4"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "quasar",
          "vendor": "quasarframework",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.23.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.23.3, Platform.parseSSR() passed an unbounded User-Agent request header to getMatch() in ui/src/plugins/platform/Platform.js, whose browser-detection expressions combined greedy captures with repeated unbounded scans. Platform belongs to autoInstalledPlugins, so this parsing occurs before routing for every SSR request. A crafted unauthenticated request containing repeated version tokens without a terminating Safari token causes super-linear backtracking and blocks the Node.js event loop, delaying every other SSR request. SPA, PWA, Electron, Cordova, Capacitor, browser-extension, and static-site-generation targets are not affected because they do not parse an attacker-controlled request header through this path. This issue is fixed in version 2.23.3."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T17:14:45.817Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/quasarframework/quasar/security/advisories/GHSA-68jq-fhch-4xq4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-68jq-fhch-4xq4"
        },
        {
          "name": "https://github.com/quasarframework/quasar/commit/7a954ddafa756afe95c8f633f48ed68a07209d3d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/quasarframework/quasar/commit/7a954ddafa756afe95c8f633f48ed68a07209d3d"
        },
        {
          "name": "https://github.com/quasarframework/quasar/releases/tag/quasar-v2.23.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/quasarframework/quasar/releases/tag/quasar-v2.23.3"
        }
      ],
      "source": {
        "advisory": "GHSA-68jq-fhch-4xq4",
        "discovery": "UNKNOWN"
      },
      "title": "Quasar Framework: Super-linear regex backtracking on User-Agent lets one request stall a Quasar SSR server"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-106104",
    "datePublished": "2026-10-06T17:14:45.817Z",
    "dateReserved": "2026-10-06T15:33:55.333Z",
    "dateUpdated": "2026-10-09T01:18:50.675Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-105854 (GCVE-0-2026-105854)

Vulnerability from cvelistv5 – Published: 2026-10-06 16:17 – Updated: 2026-10-06 17:30
VLAI
Title
Payload: ReDoS in Multipart Content-Type Validation
Summary
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, a malformed multipart request body can cause multipart Content-Type processing to take an extremely long time, resulting in uncontrolled resource consumption. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 17:29 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7566 records in the last 180 days details
References
Impacted products
Vendor Product Version
payloadcms payload Affected: >= 3.0.0, < 3.90.0
Affected: >= 4.0.0-canary.0, < 4.0.0-canary.34
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-105854",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-06T17:29:52.942510Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-06T17:30:01.567Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "payload",
          "vendor": "payloadcms",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.90.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0-canary.0, \u003c 4.0.0-canary.34"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, a malformed multipart request body can cause multipart Content-Type processing to take an extremely long time, resulting in uncontrolled resource consumption. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T16:17:30.893Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/payloadcms/payload/security/advisories/GHSA-2g7p-5934-q4w7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/payloadcms/payload/security/advisories/GHSA-2g7p-5934-q4w7"
        },
        {
          "name": "https://github.com/payloadcms/payload/commit/0084bd51fb7742b26a88431bb84cb1696857e6dc",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/payloadcms/payload/commit/0084bd51fb7742b26a88431bb84cb1696857e6dc"
        },
        {
          "name": "https://github.com/payloadcms/payload/releases/tag/v3.90.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/payloadcms/payload/releases/tag/v3.90.0"
        }
      ],
      "source": {
        "advisory": "GHSA-2g7p-5934-q4w7",
        "discovery": "UNKNOWN"
      },
      "title": "Payload: ReDoS in Multipart Content-Type Validation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-105854",
    "datePublished": "2026-10-06T16:17:30.893Z",
    "dateReserved": "2026-10-05T23:06:29.748Z",
    "dateUpdated": "2026-10-06T17:30:01.567Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-105646 (GCVE-0-2026-105646)

Vulnerability from cvelistv5 – Published: 2026-10-05 18:58 – Updated: 2026-10-07 21:41
VLAI
Title
Ghost: Regular Expression Denial of Service in Content Import
Summary
Ghost is a Node.js content management system. From 4.0.0 until 6.67.0, a crafted content import file could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. This issue is fixed in version 6.67.0.
Severity
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 21:41 UTC
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7566 records in the last 180 days details
References
Impacted products
Vendor Product Version
TryGhost Ghost Affected: >= 4.0.0, < 6.67.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-105646",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T21:41:37.379990Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T21:41:48.865Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Ghost",
          "vendor": "TryGhost",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 6.67.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Ghost is a Node.js content management system. From 4.0.0 until 6.67.0, a crafted content import file could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. This issue is fixed in version 6.67.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 4.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-05T18:58:26.224Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-fwh9-qg68-vxp4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-fwh9-qg68-vxp4"
        },
        {
          "name": "https://github.com/TryGhost/Ghost/pull/31058",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TryGhost/Ghost/pull/31058"
        },
        {
          "name": "https://github.com/TryGhost/Ghost/commit/88ae6d6d56f8a239cb38a8c89de02f034f50e2ce",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TryGhost/Ghost/commit/88ae6d6d56f8a239cb38a8c89de02f034f50e2ce"
        },
        {
          "name": "https://github.com/TryGhost/Ghost/releases/tag/v6.66.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TryGhost/Ghost/releases/tag/v6.66.0"
        }
      ],
      "source": {
        "advisory": "GHSA-fwh9-qg68-vxp4",
        "discovery": "UNKNOWN"
      },
      "title": "Ghost: Regular Expression Denial of Service in Content Import"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-105646",
    "datePublished": "2026-10-05T18:58:26.224Z",
    "dateReserved": "2026-10-05T16:40:39.613Z",
    "dateUpdated": "2026-10-07T21:41:48.865Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-105645 (GCVE-0-2026-105645)

Vulnerability from cvelistv5 – Published: 2026-10-05 18:56 – Updated: 2026-10-05 19:08
VLAI
Title
Ghost: Regular Expression Denial of Service in External Media Inliner
Summary
Ghost is a Node.js content management system. From 5.37.0 until 6.67.0, a crafted request to the external media inliner could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. This issue is fixed in version 6.67.0.
Severity
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 19:08 UTC
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7566 records in the last 180 days details
References
Impacted products
Vendor Product Version
TryGhost Ghost Affected: >= 5.37.0, < 6.67.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-105645",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-05T19:08:23.834511Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-05T19:08:46.517Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Ghost",
          "vendor": "TryGhost",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 5.37.0, \u003c 6.67.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Ghost is a Node.js content management system. From 5.37.0 until 6.67.0, a crafted request to the external media inliner could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. This issue is fixed in version 6.67.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 4.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-05T18:56:02.471Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-9m4w-fmjw-fvjq",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-9m4w-fmjw-fvjq"
        },
        {
          "name": "https://github.com/TryGhost/Ghost/issues/31058",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TryGhost/Ghost/issues/31058"
        },
        {
          "name": "https://github.com/TryGhost/Ghost/commit/88ae6d6d56f8a239cb38a8c89de02f034f50e2ce",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TryGhost/Ghost/commit/88ae6d6d56f8a239cb38a8c89de02f034f50e2ce"
        },
        {
          "name": "https://github.com/TryGhost/Ghost/releases/tag/v6.66.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/TryGhost/Ghost/releases/tag/v6.66.0"
        }
      ],
      "source": {
        "advisory": "GHSA-9m4w-fmjw-fvjq",
        "discovery": "UNKNOWN"
      },
      "title": "Ghost: Regular Expression Denial of Service in External Media Inliner"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-105645",
    "datePublished": "2026-10-05T18:56:02.471Z",
    "dateReserved": "2026-10-05T16:40:39.612Z",
    "dateUpdated": "2026-10-05T19:08:46.517Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-105219 (GCVE-0-2026-105219)

Vulnerability from cvelistv5 – Published: 2026-10-04 17:09 – Updated: 2026-10-05 14:55
VLAI
Title
Mammoth.js 1.3.0 before 1.12.3 ReDoS via Style Map Tokeniser
Summary
Mammoth.js 1.3.0 before 1.12.3 contains a regular expression denial of service vulnerability in the style map tokeniser in lib/styles/parser/tokeniser.js due to overlapping regex alternatives. Attackers can supply a crafted .docx with an unterminated quoted string of repeated backslash escapes in mammoth/style-map to block the Node.js event loop.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 13:07 UTC
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5802 records in the last 180 days details
References
Impacted products
Vendor Product Version
mwilliamson mammoth.js Affected: 1.3.0 , < 1.12.3 (semver)
Create a notification for this product.
Date Public
2026-09-01 00:00
Credits
Siyang Wu
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-105219",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-05T13:07:56.744324Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-05T14:55:01.763Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/mammoth",
          "product": "mammoth.js",
          "vendor": "mwilliamson",
          "versions": [
            {
              "lessThan": "1.12.3",
              "status": "affected",
              "version": "1.3.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Siyang Wu"
        }
      ],
      "datePublic": "2026-09-01T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Mammoth.js 1.3.0 before 1.12.3 contains a regular expression denial of service vulnerability in the style map tokeniser in lib/styles/parser/tokeniser.js due to overlapping regex alternatives. Attackers can supply a crafted .docx with an unterminated quoted string of repeated backslash escapes in mammoth/style-map to block the Node.js event loop."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-04T17:09:54.186Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Issue #487",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/mwilliamson/mammoth.js/issues/487"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/mwilliamson/mammoth.js/commit/dc49225425c2c07de0a6dc3529f2386c82a032b4"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/mwilliamson/mammoth.js/blob/1.12.2/lib/styles/parser/tokeniser.js#L6-L30"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/mwilliamson/mammoth.js"
        },
        {
          "name": "VulnCheck Advisory: Mammoth.js 1.3.0 before 1.12.3 ReDoS via Style Map Tokeniser",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/mammoth-js-1.3.0-before-1.12.3-redos-via-style-map-tokeniser"
        }
      ],
      "title": "Mammoth.js 1.3.0 before 1.12.3 ReDoS via Style Map Tokeniser",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-105219",
    "datePublished": "2026-10-04T17:09:54.186Z",
    "dateReserved": "2026-10-04T13:04:00.479Z",
    "dateUpdated": "2026-10-05T14:55:01.763Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
Mitigation
Architecture and Design

Use regular expressions that do not support backtracking, e.g. by removing nested quantifiers.

Mitigation
System Configuration

Set backtracking limits in the configuration of the regular expression implementation, such as PHP's pcre.backtrack_limit. Also consider limits on execution time for the process.

Mitigation
Implementation

Do not use regular expressions with untrusted input. If regular expressions must be used, avoid using backtracking in the expression.

Mitigation
Implementation

Limit the length of the input that the regular expression will process.

CAPEC-492: Regular Expression Exponential Blowup

An adversary may execute an attack on a program that uses a poor Regular Expression(Regex) implementation by choosing input that results in an extreme situation for the Regex. A typical extreme situation operates at exponential time compared to the input size. This is due to most implementations using a Nondeterministic Finite Automaton(NFA) state machine to be built by the Regex algorithm since NFA allows backtracking and thus more complex regular expressions.

← Back to the CWE list