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.

822 vulnerabilities reference this CWE, most recent first.

GHSA-CRJR-9RC5-GHW8

Vulnerability from github – Published: 2022-04-11 21:18 – Updated: 2023-07-06 16:02
VLAI
Summary
Nokogiri Inefficient Regular Expression Complexity
Details

Summary

Nokogiri < v1.13.4 contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to detect encoding in HTML documents.

Mitigation

Upgrade to Nokogiri >= 1.13.4.

Severity

The Nokogiri maintainers have evaluated this as High Severity 7.5 (CVSS3.1).

References

CWE-1333 Inefficient Regular Expression Complexity

Credit

This vulnerability was reported by HackerOne user ooooooo_q (ななおく).

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "nokogiri"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.13.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-24836"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-04-11T21:18:06Z",
    "nvd_published_at": "2022-04-11T22:15:00Z",
    "severity": "HIGH"
  },
  "details": "## Summary\n\nNokogiri `\u003c v1.13.4` contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to detect encoding in HTML documents.\n\n## Mitigation\n\nUpgrade to Nokogiri `\u003e= 1.13.4`.\n\n\n## Severity\n\nThe Nokogiri maintainers have evaluated this as [**High Severity** 7.5 (CVSS3.1)](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).\n\n\n## References\n\n[CWE-1333](https://cwe.mitre.org/data/definitions/1333.html) Inefficient Regular Expression Complexity\n\n\n## Credit\n\nThis vulnerability was reported by HackerOne user ooooooo_q (\u306a\u306a\u304a\u304f).\n",
  "id": "GHSA-crjr-9rc5-ghw8",
  "modified": "2023-07-06T16:02:37Z",
  "published": "2022-04-11T21:18:06Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-crjr-9rc5-ghw8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24836"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/nokogiri/commit/e444525ef1634b675cd1cf52d39f4320ef0aecfd"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2022-24836.yml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sparklemotion/nokogiri"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.4"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/ruby-security-ann/c/vX7qSjsvWis/m/TJWN4oOKBwAJ?utm_medium=email\u0026utm_source=footer"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00013.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00018.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6DHCOWMA5PQTIQIMDENA7R2Y5BDYAIYM"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OUPLBUZVM4WPFSXBEP2JS3R6LMKRTLFC"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XMDCWRQXJQ3TFSETPCEFMQ6RR6ME5UA3"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202208-29"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT213532"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2022/Dec/23"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nokogiri Inefficient Regular Expression Complexity"
}

GHSA-CW56-J3FM-7W57

Vulnerability from github – Published: 2022-05-18 00:00 – Updated: 2023-07-11 16:35
VLAI
Summary
Regular expression denial of service in Apache ShenYu
Details

In Apache ShenYui, ShenYu-Bootstrap, RegexPredicateJudge.java uses Pattern.matches(conditionData.getParamValue(), realData) to make judgments, where both parameters are controllable by the user. This can cause an attacker pass in malicious regular expressions and characters causing a resource exhaustion. This issue affects Apache ShenYu (incubating) 2.4.0, 2.4.1 and 2.4.2 and is fixed in 2.4.3.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.shenyu:shenyu"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.4.0"
            },
            {
              "fixed": "2.4.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.shenyu:shenyu-bootstrap"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.4.0"
            },
            {
              "fixed": "2.4.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-26650"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333",
      "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-05-25T19:36:33Z",
    "nvd_published_at": "2022-05-17T08:15:00Z",
    "severity": "HIGH"
  },
  "details": "In Apache ShenYui, ShenYu-Bootstrap, RegexPredicateJudge.java uses Pattern.matches(conditionData.getParamValue(), realData) to make judgments, where both parameters are controllable by the user. This can cause an attacker pass in malicious regular expressions and characters causing a resource exhaustion. This issue affects Apache ShenYu (incubating) 2.4.0, 2.4.1 and 2.4.2 and is fixed in 2.4.3.",
  "id": "GHSA-cw56-j3fm-7w57",
  "modified": "2023-07-11T16:35:32Z",
  "published": "2022-05-18T00:00:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-26650"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/incubator-shenyu"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/8rp33m3nm4bwtx3qx76mqynth3t3d673"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2022/05/17/3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Regular expression denial of service in Apache ShenYu"
}

GHSA-F3WJ-W3QW-RW57

Vulnerability from github – Published: 2026-09-11 18:31 – Updated: 2026-09-11 21:31
VLAI
Details

The two built-in name-finder patterns exposed by opennlp.tools.namefind.RegexNameFinderFactory - DEFAULT_REGEX_NAME_FINDER.EMAIL and DEFAULT_REGEX_NAME_FINDER.URL - contain ambiguous nested quantifiers. An application that obtains these finders through RegexNameFinderFactory.getDefaultRegexNameFinders(...) and then applies them to untrusted text through RegexNameFinder.find(String[]) or RegexNameFinder.find(String) can be driven into super-linear backtracking or into unbounded matcher recursion by a small crafted input.

For the EMAIL pattern, a long run of local-part characters that is never followed by an @ forces the matcher to re-scan to end-of-input from every starting offset. Cost grows quadratically with input length: an input of approximately 32 KB consumes several seconds of CPU in a single find() call and returns no match, and each doubling of the input multiplies the cost roughly four-fold.

For the URL pattern, the query-string sub-expression nests a capturing repetition inside an outer repetition. The JDK matcher recurses once per query token, so an input of approximately 4 KB containing many &-separated tokens exhausts the thread stack and causes java.lang.StackOverflowError to propagate out of find(), terminating the calling thread. On a thread created with a smaller stack (for example -Xss512k, typical of server worker pools) approximately 1 KB is sufficient.

In both cases an attacker who can supply text for analysis can convert a single request into seconds to minutes of pinned CPU, or into an abrupt thread death, denying service to the embedding application. No authentication, special configuration, or model file is required beyond the application having selected one of the two built-in finders.

This issue affects Apache OpenNLP: from 2.0.0 through 2.5.11; from 3.0.0-M1 through 3.0.0-M5.

Users are recommended to upgrade to version 2.5.12, or to 3.0.0-M6 for users tracking the 3.0.0 milestone line, which fix the issue.

Severity
10.0 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-82617"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-11T18:16:59Z",
    "severity": "CRITICAL"
  },
  "details": "The two built-in name-finder patterns exposed by\nopennlp.tools.namefind.RegexNameFinderFactory - DEFAULT_REGEX_NAME_FINDER.EMAIL\nand DEFAULT_REGEX_NAME_FINDER.URL\u00a0- contain ambiguous nested quantifiers. An\napplication that obtains these finders through\nRegexNameFinderFactory.getDefaultRegexNameFinders(...) and then applies them to\nuntrusted text through RegexNameFinder.find(String[]) or RegexNameFinder.find(String)\ncan be driven into super-linear backtracking or into unbounded matcher recursion by a\nsmall crafted input.\n\n\n\n\n\nFor the EMAIL pattern, a long run of local-part characters that is never followed by an\n@ forces the matcher to re-scan to end-of-input from every starting offset. Cost grows\nquadratically with input length: an input of approximately 32 KB consumes several seconds\nof CPU in a single find() call and returns no match, and each doubling of the input\nmultiplies the cost roughly four-fold.\n\n\n\n\n\nFor the URL pattern, the query-string sub-expression nests a capturing repetition inside\nan outer repetition. The JDK matcher recurses once per query token, so an input of\napproximately 4 KB containing many \u0026-separated tokens exhausts the thread stack and\ncauses java.lang.StackOverflowError to propagate out of find(), terminating the\ncalling thread. On a thread created with a smaller stack (for example -Xss512k, typical\nof server worker pools) approximately 1 KB is sufficient.\n\n\n\n\n\nIn both cases an attacker who can supply text for analysis can convert a single request\ninto seconds to minutes of pinned CPU, or into an abrupt thread death, denying service to\nthe embedding application. No authentication, special configuration, or model file is\nrequired beyond the application having selected one of the two built-in finders.\n\n\n\n\n\nThis issue affects Apache OpenNLP: from 2.0.0 through 2.5.11; from 3.0.0-M1 through\n3.0.0-M5.\n\n\n\n\n\n\n\n\n\nUsers are recommended to upgrade to version 2.5.12, or to 3.0.0-M6 for users tracking the\n3.0.0 milestone line, which fix the issue.",
  "id": "GHSA-f3wj-w3qw-rw57",
  "modified": "2026-09-11T21:31:17Z",
  "published": "2026-09-11T18:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82617"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/spzhcxxszqdpppg70m1zz2l3mv29mhl3"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/09/11/10"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-F45G-68Q3-5W8X

Vulnerability from github – Published: 2026-03-10 21:04 – Updated: 2026-03-10 22:55
VLAI
Summary
Elysia has a string URL format ReDoS
Details

Impact

t.String({ format: 'url' }) is vulnerable to redos

Repeating a partial url format (protocol and hostname) multiple times cause regex to slow down significantly

'http://a'.repeat(n)

Here's a table demonstrating how long it takes to process repeated partial url format | n repeat | elapsed_ms | | --- | --- | | 1024 | 33.993 | | 2048 | 134.357 | | 4096 | 537.608 | | 8192 | 2155.842 | | 16384 | 8618.457 | | 32768 | 34604.139 |

Patches

Patched by 1.4.26, please kindly update elysia to >= 1.4.26

Here's how long it takes after the patch | n repeat | elapsed_ms | | --- | --- | | 1024 | 0.194 | | 2048 | 0.274 | | 4096 | 0.455 | | 8192 | 0.831 | | 16384 | 1.632 | | 32768 | 3.052 |

Workarounds

  1. It's recommended to always limit URL format to a reasonable length
t.String({
    format: 'url',
    maxLength: 288
})
  1. If a long URL format is necessary, to patch this without updating to 1.4.26, add the following code to any part of your codebase
import { FormatRegistry } from '@sinclair/typebox'

FormatRegistry.Delete('url')
FormatRegistry.Set('url', (value) =>
    /^(?:https?|ftp):\/\/(?:[^\s:@]+(?::[^\s@]*)?@)?(?:(?!(?:10|127)(?:\.\d{1,3}){3})(?!(?:169\.254|192\.168)(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z0-9\u{00a1}-\u{ffff}]+-)*[a-z0-9\u{00a1}-\u{ffff}]+)(?:\.(?:[a-z0-9\u{00a1}-\u{ffff}]+-)*[a-z0-9\u{00a1}-\u{ffff}]+)*(?:\.(?:[a-z\u{00a1}-\u{ffff}]{2,})))(?::\d{2,5})?(?:\/[^\s]*)?$/iu.test(
        value
    )
)
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "elysia"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.26"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-30837"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-10T21:04:25Z",
    "nvd_published_at": "2026-03-10T21:16:47Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n`t.String({ format: \u0027url\u0027 })` is vulnerable to redos\n\nRepeating a partial url format (protocol and hostname) multiple times cause regex to slow down significantly\n```js\n\u0027http://a\u0027.repeat(n)\n```\n\nHere\u0027s a table demonstrating how long it takes to process repeated partial url format\n| `n` repeat | elapsed_ms |\n| --- | --- |\n| 1024 | 33.993 |\n| 2048 | 134.357 |\n| 4096 | 537.608 |\n| 8192 | 2155.842 |\n| 16384 | 8618.457 |\n| 32768 | 34604.139 |\n\n### Patches\nPatched by 1.4.26, please kindly update `elysia` to \u003e= 1.4.26 \n\nHere\u0027s how long it takes after the patch\n| `n` repeat | elapsed_ms |\n| --- | --- |\n| 1024 | 0.194 |\n| 2048 | 0.274 |\n| 4096 | 0.455 |\n| 8192 | 0.831 |\n| 16384 | 1.632 |\n| 32768 | 3.052 |\n\n### Workarounds\n1. It\u0027s recommended to always limit URL format to a reasonable length\n```ts\nt.String({\n\tformat: \u0027url\u0027,\n\tmaxLength: 288\n})\n```\n\n2. If a long URL format is necessary, to patch this without updating to 1.4.26, add the following code to any part of your codebase\n```js\nimport { FormatRegistry } from \u0027@sinclair/typebox\u0027\n\nFormatRegistry.Delete(\u0027url\u0027)\nFormatRegistry.Set(\u0027url\u0027, (value) =\u003e\n\t/^(?:https?|ftp):\\/\\/(?:[^\\s:@]+(?::[^\\s@]*)?@)?(?:(?!(?:10|127)(?:\\.\\d{1,3}){3})(?!(?:169\\.254|192\\.168)(?:\\.\\d{1,3}){2})(?!172\\.(?:1[6-9]|2\\d|3[0-1])(?:\\.\\d{1,3}){2})(?:[1-9]\\d?|1\\d\\d|2[01]\\d|22[0-3])(?:\\.(?:1?\\d{1,2}|2[0-4]\\d|25[0-5])){2}(?:\\.(?:[1-9]\\d?|1\\d\\d|2[0-4]\\d|25[0-4]))|(?:(?:[a-z0-9\\u{00a1}-\\u{ffff}]+-)*[a-z0-9\\u{00a1}-\\u{ffff}]+)(?:\\.(?:[a-z0-9\\u{00a1}-\\u{ffff}]+-)*[a-z0-9\\u{00a1}-\\u{ffff}]+)*(?:\\.(?:[a-z\\u{00a1}-\\u{ffff}]{2,})))(?::\\d{2,5})?(?:\\/[^\\s]*)?$/iu.test(\n\t\tvalue\n\t)\n)\n```",
  "id": "GHSA-f45g-68q3-5w8x",
  "modified": "2026-03-10T22:55:50Z",
  "published": "2026-03-10T21:04:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/elysiajs/elysia/security/advisories/GHSA-f45g-68q3-5w8x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-30837"
    },
    {
      "type": "WEB",
      "url": "https://github.com/EdamAme-x/elysia-poc-redos"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/elysiajs/elysia"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Elysia has a string URL format ReDoS"
}

GHSA-F522-FFG8-J8R6

Vulnerability from github – Published: 2017-10-24 18:33 – Updated: 2025-10-17 17:50
VLAI
Summary
Regular Expression Denial of Service in is-my-json-valid
Details

Version of is-my-json-valid before 2.12.4 are vulnerable to regular expression denial of service (ReDoS) via the email validation function.

Recommendation

Update to version 2.12.4 or later.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "is-my-json-valid"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.12.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-2537"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:33:36Z",
    "nvd_published_at": "2016-02-23T05:59:01Z",
    "severity": "HIGH"
  },
  "details": "Version of `is-my-json-valid` before 2.12.4 are vulnerable to regular expression denial of service (ReDoS) via the email validation function.\n\n\n## Recommendation\n\nUpdate to version 2.12.4 or later.",
  "id": "GHSA-f522-ffg8-j8r6",
  "modified": "2025-10-17T17:50:27Z",
  "published": "2017-10-24T18:33:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-2537"
    },
    {
      "type": "WEB",
      "url": "https://github.com/github/advisory-database/pull/4850"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mafintosh/is-my-json-valid/pull/159"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mafintosh/is-my-json-valid/commit/b3051b277f7caa08cd2edc6f74f50aeda65d2976"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mafintosh/is-my-json-valid/commit/eca4beb21e61877d76fdf6bea771f72f39544d9b"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/317548"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-f522-ffg8-j8r6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mafintosh/is-my-json-valid"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/572"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/76"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Regular Expression Denial of Service in is-my-json-valid"
}

GHSA-F5XG-CFPJ-2MW6

Vulnerability from github – Published: 2025-06-09 21:30 – Updated: 2025-06-09 23:08
VLAI
Summary
taro-css-to-react-native Regular Expression Denial of Service vulnerability
Details

A vulnerability was found in tarojs taro up to 4.1.1. It has been declared as problematic. This vulnerability affects unknown code of the file taro/packages/css-to-react-native/src/index.js. The manipulation leads to inefficient regular expression complexity. The attack can be initiated remotely. Upgrading to version 4.1.2 is able to address this issue. The name of the patch is c2e321a8b6fc873427c466c69f41ed0b5e8814bf. It is recommended to upgrade the affected component.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "taro-css-to-react-native"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-5896"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-06-09T23:08:45Z",
    "nvd_published_at": "2025-06-09T21:15:47Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was found in tarojs taro up to 4.1.1. It has been declared as problematic. This vulnerability affects unknown code of the file taro/packages/css-to-react-native/src/index.js. The manipulation leads to inefficient regular expression complexity. The attack can be initiated remotely. Upgrading to version 4.1.2 is able to address this issue. The name of the patch is c2e321a8b6fc873427c466c69f41ed0b5e8814bf. It is recommended to upgrade the affected component.",
  "id": "GHSA-f5xg-cfpj-2mw6",
  "modified": "2025-06-09T23:08:45Z",
  "published": "2025-06-09T21:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5896"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NervJS/taro/pull/17619"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NervJS/taro/commit/c2e321a8b6fc873427c466c69f41ed0b5e8814bf"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/NervJS/taro"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NervJS/taro/releases/tag/v4.1.2"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.311668"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.311668"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.585796"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "taro-css-to-react-native Regular Expression Denial of Service vulnerability"
}

GHSA-F8Q6-P94X-37V3

Vulnerability from github – Published: 2022-10-18 12:00 – Updated: 2024-02-14 18:15
VLAI
Summary
minimatch ReDoS vulnerability
Details

A vulnerability was found in the minimatch package. This flaw allows a Regular Expression Denial of Service (ReDoS) when calling the braceExpand function with specific arguments, resulting in a Denial of Service.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "minimatch"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-3517"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-10-20T18:21:03Z",
    "nvd_published_at": "2022-10-17T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability was found in the minimatch package. This flaw allows a Regular Expression Denial of Service (ReDoS) when calling the braceExpand function with specific arguments, resulting in a Denial of Service.",
  "id": "GHSA-f8q6-p94x-37v3",
  "modified": "2024-02-14T18:15:16Z",
  "published": "2022-10-18T12:00:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3517"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grafana/grafana-image-renderer/issues/329"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nodejs/node/issues/42510"
    },
    {
      "type": "WEB",
      "url": "https://github.com/isaacs/minimatch/commit/a8763f4388e51956be62dc6025cec1126beeb5e6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/isaacs/minimatch"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/01/msg00011.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MTEUUTNIEBHGKUKKLNUZSV7IEP6IP3Q3"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UM6XJ73Q3NAM5KSGCOKJ2ZIA6GUWUJLK"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "minimatch ReDoS vulnerability"
}

GHSA-F8WW-P9XJ-CM59

Vulnerability from github – Published: 2023-01-12 06:30 – Updated: 2023-01-18 21:30
VLAI
Details

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.8 before 15.5.7, all versions starting from 15.6 before 15.6.4, all versions starting from 15.7 before 15.7.2. An attacker may cause Denial of Service on a GitLab instance by exploiting a regex issue in how the application parses user agents.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2022-4131"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-01-12T04:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.8 before 15.5.7, all versions starting from 15.6 before 15.6.4, all versions starting from 15.7 before 15.7.2. An attacker may cause Denial of Service on a GitLab instance by exploiting a regex issue in how the application parses user agents.",
  "id": "GHSA-f8ww-p9xj-cm59",
  "modified": "2023-01-18T21:30:21Z",
  "published": "2023-01-12T06:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-4131"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1772063"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-4131.json"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/383598"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-F9V8-6C5P-2WHH

Vulnerability from github – Published: 2023-06-07 18:30 – Updated: 2024-04-04 04:39
VLAI
Details

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.0 before 15.10.8, all versions starting from 15.11 before 15.11.7, all versions starting from 16.0 before 16.0.2. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-2199"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-06-07T17:15:10Z",
    "severity": "HIGH"
  },
  "details": "An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.0 before 15.10.8, all versions starting from 15.11 before 15.11.7, all versions starting from 16.0 before 16.0.2. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.",
  "id": "GHSA-f9v8-6c5p-2whh",
  "modified": "2024-04-04T04:39:39Z",
  "published": "2023-06-07T18:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2199"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1943819"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-2199.json"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/408272"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FFMH-X56J-9RC3

Vulnerability from github – Published: 2022-07-05 22:56 – Updated: 2022-07-22 16:34
VLAI
Summary
jquery-validation Regular Expression Denial of Service due to arbitrary input to url2 method
Details

Summary

Incomplete fix of CVE-2021-43306: An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "jquery-validation"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.19.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-31147"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-07-05T22:56:58Z",
    "nvd_published_at": "2022-07-14T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "Summary\n\nIncomplete fix of CVE-2021-43306: An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method.",
  "id": "GHSA-ffmh-x56j-9rc3",
  "modified": "2022-07-22T16:34:21Z",
  "published": "2022-07-05T22:56:58Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-ffmh-x56j-9rc3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31147"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jquery-validation/jquery-validation/commit/5bbd80d27fc6b607d2f7f106c89522051a9fb0dd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jquery-validation/jquery-validation"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jquery-validation/jquery-validation/releases/tag/1.19.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jquery-validation Regular Expression Denial of Service due to arbitrary input to url2 method"
}
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.

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