FKIE_CVE-2026-59947

Vulnerability from fkie_nvd - Published: 2026-07-08 20:16 - Updated: 2026-07-08 20:16
Severity
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
Composer is a dependency Manager for the PHP language. Prior to 2.2.29 and 2.10.2, when Composer is run with -vvv debug verbosity, it could print a credential embedded in the username slot of a repository or package URL, such as a GitHub Personal Access Token in https://TOKEN@host/, to debug output because AuthHelper, Url::sanitize, and ProcessExecutor did not sanitize username-only URL credentials. This issue is fixed in versions 2.2.29 and 2.10.2.
References
security-advisories@github.comhttps://github.com/composer/composer/commit/6bd66874ae523ecb69aca5964487a0cdfda03ef8
security-advisories@github.comhttps://github.com/composer/composer/commit/8887ad76fbd830cb1861a2b1fd8ead78ed1fa1ec
security-advisories@github.comhttps://github.com/composer/composer/releases/tag/2.10.2
security-advisories@github.comhttps://github.com/composer/composer/releases/tag/2.2.29
security-advisories@github.comhttps://github.com/composer/composer/security/advisories/GHSA-g6xq-892h-64w3
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "composer",
          "vendor": "composer",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.0, \u003c 2.2.29"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.3.0, \u003c 2.10.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Composer is a dependency Manager for the PHP language. Prior to 2.2.29 and 2.10.2, when Composer is run with -vvv debug verbosity, it could print a credential embedded in the username slot of a repository or package URL, such as a GitHub Personal Access Token in https://TOKEN@host/, to debug output because AuthHelper, Url::sanitize, and ProcessExecutor did not sanitize username-only URL credentials. This issue is fixed in versions 2.2.29 and 2.10.2."
    }
  ],
  "id": "CVE-2026-59947",
  "lastModified": "2026-07-08T20:16:59.843",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-07-08T20:16:59.843",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/composer/composer/commit/6bd66874ae523ecb69aca5964487a0cdfda03ef8"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/composer/composer/commit/8887ad76fbd830cb1861a2b1fd8ead78ed1fa1ec"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/composer/composer/releases/tag/2.10.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/composer/composer/releases/tag/2.2.29"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/composer/composer/security/advisories/GHSA-g6xq-892h-64w3"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-532"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.


Detection rules are retrieved from Rulezet.