Vulnerability-Lookup

CVE-2026-107231 (GCVE-0-2026-107231)

Vulnerability from cvelistv5 – Published: 2026-10-07 21:06 – Updated: 2026-10-10 02:48

Title

AsyncHttpClient: Digest challenge without a usable nonce downgrades to Basic and sends the password in cleartext

Summary

The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.13 and 2.16.1, Realm.Builder treats a Digest challenge that yields no usable nonce as a Basic challenge. A malicious origin or proxy can label a challenge Digest while omitting or emptying the nonce, causing the client to resend the username and password using reversible Basic authentication. Both origin and proxy challenge parsers are affected. This issue is fixed in versions 3.0.13 and 2.16.1.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-10 02:48 UTC

CWE

CWE-319 - Cleartext Transmission of Sensitive Information
CWE-522 - Insufficiently Protected Credentials
CWE-757 - Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7552 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/AsyncHttpClient/async-http-cli…	x_refsource_CONFIRM
https://github.com/AsyncHttpClient/async-http-cli…	x_refsource_MISC
https://github.com/AsyncHttpClient/async-http-cli…	x_refsource_MISC
https://github.com/AsyncHttpClient/async-http-cli…	x_refsource_MISC
https://github.com/AsyncHttpClient/async-http-cli…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
AsyncHttpClient	async-http-client	Affected: >= 3.0.0.Beta1, < 3.0.13 Affected: >= 2.0.0, < 2.16.1	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-107231

Vulnerability from fkie_nvd - Published: 2026-10-07 22:17 - Updated: 2026-10-10 03:17

Severity

8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/AsyncHttpClient/async-http-client/commit/8376866aa9b5a7653ad19db9d472692f875caa83
	security-advisories@github.com	https://github.com/AsyncHttpClient/async-http-client/commit/c8d639bf6ac341d377d610a93570bcd15565f1a6
	security-advisories@github.com	https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1
	security-advisories@github.com	https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13
	security-advisories@github.com	https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-rqf5-2wxv-rjf4

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-107231",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-10T02:48:40.420815Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-07T22:17:03.320",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/AsyncHttpClient/async-http-client/commit/8376866aa9b5a7653ad19db9d472692f875caa83"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/AsyncHttpClient/async-http-client/commit/c8d639bf6ac341d377d610a93570bcd15565f1a6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-rqf5-2wxv-rjf4"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-319"
        },
        {
          "lang": "en",
          "value": "CWE-522"
        },
        {
          "lang": "en",
          "value": "CWE-757"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-RQF5-2WXV-RJF4

Vulnerability from github – Published: 2026-10-08 16:23 – Updated: 2026-10-08 16:23

Summary

AsyncHttpClient: Digest challenge without a usable nonce downgrades to Basic and sends the password in cleartext

Details

Impact

A Digest challenge that does not yield a usable nonce is treated as a Basic challenge. The client then answers it with Authorization: Basic, which carries the username and password base64 encoded and so recoverable by anyone who sees the request.

Any of these is enough, sent by whoever writes the 401 or 407:

WWW-Authenticate: Digest realm="protected"
WWW-Authenticate: Digest realm="protected", nonce=""

The challenge announces itself as Digest, so it passes the check that would otherwise reject a non-Digest challenge for a Digest realm. It then fails to produce a nonce, and the absence of a nonce is what selected Basic. A server offering plain Basic to a Digest realm gets nothing, so labelling the challenge Digest and leaving the nonce out is what makes the difference.

This is reachable by anyone who can write the challenge: a malicious or compromised origin, a proxy, or an attacker on a plaintext hop. Digest exists precisely to keep the password off those hops. A server that stores only HA1, and anyone impersonating the real origin, does not otherwise learn the password itself, so the disclosure enables reuse against other services.

Both the target and the proxy paths are affected, through parseWWWAuthenticateHeader and parseProxyAuthenticateHeader.

Affected versions

3.x: up to and including 3.0.12
2.x: up to and including 2.16.0

This is long-standing behaviour on both lines, not a recent regression. On 3.0.12 there is one additional way to reach it: a quoted parameter ending in an unescaped backslash, such as realm="C:\", makes the closing quote read as escaped so the nonce is never found. That trigger is specific to 3.0.12. The downgrade it led to is fixed, but the nonce is still lost on such a challenge: every conformant reader treats the closing quote as escaped. The exchange now fails instead of falling back to Basic.

Patches

Fixed in 3.0.13 on the 3.x line and in 2.16.1 on the 2.x line. The scheme now comes from the challenge itself instead of being inferred from whether a nonce was found, so a Digest challenge stays Digest even when it cannot be read. With no nonce it produces no Authorization header at all, which fails the exchange rather than downgrading it.

The 3.x fix also corrects quoted-pair handling so that a backslash before any character other than a quote or another backslash is kept as written, matching Apache HttpComponents. That repairs a 3.0.12 regression where an unescaped realm such as DOMAIN\Users was corrupted to DOMAINUsers and failed every digest comparison. This is a deliberate deviation from a strict reading of RFC 9110 Section 5.6.4, under which a backslash before any character is a quoted-pair. Reading it strictly is what corrupts the unescaped spelling that servers actually send, and the decoding is not reversible either way, so the client follows the same rule as Apache HttpComponents.

Workarounds

No configuration prevents this. Until you can upgrade, do not use Digest authentication against a server you do not control, and do not use it over plaintext HTTP.

Details

Realm.Builder.parseWWWAuthenticateHeader and parseProxyAuthenticateHeader selected the scheme with isNonEmpty(nonce) ? AuthScheme.DIGEST : AuthScheme.BASIC, so any challenge that produced no nonce became a Basic challenge and Unauthorized401Interceptor resent the request using computeBasicAuthentication.

Severity

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.0.12"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.asynchttpclient:async-http-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0.Beta1"
            },
            {
              "fixed": "3.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.16.0"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.asynchttpclient:async-http-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.16.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-107231"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-319",
      "CWE-522",
      "CWE-757"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-08T16:23:36Z",
    "nvd_published_at": "2026-10-07T22:17:03Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nA Digest challenge that does not yield a usable nonce is treated as a Basic challenge. The client then answers it with `Authorization: Basic`, which carries the username and password base64 encoded and so recoverable by anyone who sees the request.\n\nAny of these is enough, sent by whoever writes the 401 or 407:\n\n```\nWWW-Authenticate: Digest realm=\"protected\"\nWWW-Authenticate: Digest realm=\"protected\", nonce=\"\"\n```\n\nThe challenge announces itself as Digest, so it passes the check that would otherwise reject a non-Digest challenge for a Digest realm. It then fails to produce a nonce, and the absence of a nonce is what selected Basic. A server offering plain `Basic` to a Digest realm gets nothing, so labelling the challenge Digest and leaving the nonce out is what makes the difference.\n\nThis is reachable by anyone who can write the challenge: a malicious or compromised origin, a proxy, or an attacker on a plaintext hop. Digest exists precisely to keep the password off those hops. A server that stores only HA1, and anyone impersonating the real origin, does not otherwise learn the password itself, so the disclosure enables reuse against other services.\n\nBoth the target and the proxy paths are affected, through `parseWWWAuthenticateHeader` and `parseProxyAuthenticateHeader`.\n\n### Affected versions\n* 3.x: up to and including 3.0.12\n* 2.x: up to and including 2.16.0\n\nThis is long-standing behaviour on both lines, not a recent regression. On 3.0.12 there is one additional way to reach it: a quoted parameter ending in an unescaped backslash, such as `realm=\"C:\\\"`, makes the closing quote read as escaped so the nonce is never found. That trigger is specific to 3.0.12. The downgrade it led to is fixed, but the nonce is still lost on such a challenge: every conformant reader treats the closing quote as escaped. The exchange now fails instead of falling back to Basic.\n\n### Patches\nFixed in 3.0.13 on the 3.x line and in 2.16.1 on the 2.x line. The scheme now comes from the challenge itself instead of being inferred from whether a nonce was found, so a Digest challenge stays Digest even when it cannot be read. With no nonce it produces no Authorization header at all, which fails the exchange rather than downgrading it.\n\nThe 3.x fix also corrects quoted-pair handling so that a backslash before any character other than a quote or another backslash is kept as written, matching Apache HttpComponents. That repairs a 3.0.12 regression where an unescaped realm such as `DOMAIN\\Users` was corrupted to `DOMAINUsers` and failed every digest comparison. This is a deliberate deviation from a strict reading of RFC 9110 Section 5.6.4, under which a backslash before any character is a quoted-pair. Reading it strictly is what corrupts the unescaped spelling that servers actually send, and the decoding is not reversible either way, so the client follows the same rule as Apache HttpComponents.\n\n### Workarounds\nNo configuration prevents this. Until you can upgrade, do not use Digest authentication against a server you do not control, and do not use it over plaintext HTTP.\n\n### Details\n`Realm.Builder.parseWWWAuthenticateHeader` and `parseProxyAuthenticateHeader` selected the scheme with `isNonEmpty(nonce) ? AuthScheme.DIGEST : AuthScheme.BASIC`, so any challenge that produced no nonce became a Basic challenge and `Unauthorized401Interceptor` resent the request using `computeBasicAuthentication`.",
  "id": "GHSA-rqf5-2wxv-rjf4",
  "modified": "2026-10-08T16:23:36Z",
  "published": "2026-10-08T16:23:36Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-rqf5-2wxv-rjf4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-107231"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AsyncHttpClient/async-http-client/commit/8376866aa9b5a7653ad19db9d472692f875caa83"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AsyncHttpClient/async-http-client/commit/c8d639bf6ac341d377d610a93570bcd15565f1a6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/AsyncHttpClient/async-http-client"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "AsyncHttpClient: Digest challenge without a usable nonce downgrades to Basic and sends the password in cleartext"
}

UBUNTU-CVE-2026-107231 (CVE-2026-107231)

Vulnerability from osv_ubuntu – Published: 2026-10-08 00:00 – Updated: 2026-10-08 00:00 – Source website

Details

Severity

8.7 (High)


                    
                      CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-107231	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-107231	REPORT
	https://github.com/AsyncHttpClient/async-http-cli…	REPORT
	https://github.com/AsyncHttpClient/async-http-cli…	REPORT
	https://github.com/AsyncHttpClient/async-http-cli…	REPORT
	https://github.com/AsyncHttpClient/async-http-cli…	REPORT
	https://github.com/AsyncHttpClient/async-http-cli…	REPORT
	https://github.com/AsyncHttpClient/async-http-cli…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libasync-http-client-java",
            "binary_version": "1.6.5-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "async-http-client",
        "purl": "pkg:deb/ubuntu/async-http-client@1.6.5-2ubuntu0.1~esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.5-1",
        "1.6.5-2",
        "1.6.5-2ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libasync-http-client-java",
            "binary_version": "1.6.5-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "async-http-client",
        "purl": "pkg:deb/ubuntu/async-http-client@1.6.5-4?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.5-4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libasync-http-client-java",
            "binary_version": "1.6.5-5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "async-http-client",
        "purl": "pkg:deb/ubuntu/async-http-client@1.6.5-5?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.5-4",
        "1.6.5-5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libasync-http-client-java",
            "binary_version": "2.6.0-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "async-http-client",
        "purl": "pkg:deb/ubuntu/async-http-client@2.6.0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.6.0-1",
        "2.6.0-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libasync-http-client-java",
            "binary_version": "2.12.3-1ubuntu0.22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "async-http-client",
        "purl": "pkg:deb/ubuntu/async-http-client@2.12.3-1ubuntu0.22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.12.2-1",
        "2.12.3-1",
        "2.12.3-1ubuntu0.22.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libasync-http-client-java",
            "binary_version": "2.12.3-1ubuntu0.24.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "async-http-client",
        "purl": "pkg:deb/ubuntu/async-http-client@2.12.3-1ubuntu0.24.04.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.12.3-1",
        "2.12.3-1ubuntu0.24.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libasync-http-client-java",
            "binary_version": "2.12.3-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "async-http-client",
        "purl": "pkg:deb/ubuntu/async-http-client@2.12.3-1ubuntu1.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.12.3-1",
        "2.12.3-1ubuntu1",
        "2.12.3-1ubuntu1.1"
      ]
    }
  ],
  "aliases": [],
  "details": "The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.13 and 2.16.1, Realm.Builder treats a Digest challenge that yields no usable nonce as a Basic challenge. A malicious origin or proxy can label a challenge Digest while omitting or emptying the nonce, causing the client to resend the username and password using reversible Basic authentication. Both origin and proxy challenge parsers are affected. This issue is fixed in versions 3.0.13 and 2.16.1.",
  "id": "UBUNTU-CVE-2026-107231",
  "modified": "2026-10-08T00:00:00Z",
  "published": "2026-10-08T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-107231"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-107231"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-rqf5-2wxv-rjf4"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/AsyncHttpClient/async-http-client/commit/c8d639bf6ac341d377d610a93570bcd15565f1a6"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/AsyncHttpClient/async-http-client/commit/8376866aa9b5a7653ad19db9d472692f875caa83"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/AsyncHttpClient/async-http-client/commit/c8d639bf6ac341d377d610a93570bcd15565f1a6"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-107231"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-107231 (GCVE-0-2026-107231)

FKIE_CVE-2026-107231

GHSA-RQF5-2WXV-RJF4

Impact

Affected versions

Patches

Workarounds

Details

UBUNTU-CVE-2026-107231 (CVE-2026-107231)

Tags

Sightings

Nomenclature

Related by attack behaviour