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CVE-2026-67322

Full vulnerability record from the local CVENow database.

Description

GitPython before 3.1.52 is vulnerable to environment-variable exfiltration in Repo.clone_from(). The caller-supplied remote URL is passed through Git.polish_url(), which on non-Cygwin platforms calls os.path.expandvars() on the URL before invoking git clone. An attacker who controls the clone URL can embed $NAME or ${NAME} tokens that are expanded to the values of the hosting process's environment variables (e.g., AWS_SECRET_ACCESS_KEY or GITHUB_TOKEN). The resulting URL, now containing the secret, is transmitted over the network to an attacker-controlled host during the clone attempt, disclosing the secret.

Severity
HIGH
CVSS score
8.7 (v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-08-01 13:17:02.493000
Last modified
2026-10-23 23:10:00.157000
View original CVE JSON
{
  "id": "CVE-2026-67322",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-01T13:17:02.493",
  "lastModified": "2026-10-23T23:10:00.157",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "GitPython before 3.1.52 is vulnerable to environment-variable exfiltration in Repo.clone_from(). The caller-supplied remote URL is passed through Git.polish_url(), which on non-Cygwin platforms calls os.path.expandvars() on the URL before invoking git clone. An attacker who controls the clone URL can embed $NAME or ${NAME} tokens that are expanded to the values of the hosting process's environment variables (e.g., AWS_SECRET_ACCESS_KEY or GITHUB_TOKEN). The resulting URL, now containing the secret, is transmitted over the network to an attacker-controlled host during the clone attempt, disclosing the secret."
    },
    {
      "lang": "es",
      "value": "GitPython anterior a la 3.1.52 es vulnerable a la exfiltración de variables de entorno en Repo.clone_from(). La URL remota proporcionada por el llamador se pasa a través de Git.polish_url(), que en plataformas que no son Cygwin llama a os.path.expandvars() en la URL antes de invocar git clone. Un atacante que controla la URL de clonación puede incrustar tokens $NAME o ${NAME} que se expanden a los valores de las variables de entorno del proceso de alojamiento (p. ej., AWS_SECRET_ACCESS_KEY o GITHUB_TOKEN). La URL resultante, ahora que contiene el secreto, se transmite a través de la red a un host controlado por el atacante durante el intento de clonación, revelando el secreto."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "gitpython-developers",
          "product": "GitPython",
          "defaultStatus": "unaffected",
          "packageURL": "pkg:pypi/gitpython",
          "versions": [
            {
              "version": "0",
              "lessThan": "3.1.52",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "3.1.52",
              "versionType": "semver",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
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        "type": "Secondary",
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          "attackVector": "NETWORK",
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          "attackRequirements": "NONE",
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          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "cvssData": {
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          "baseSeverity": "HIGH",
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          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-03T18:27:17.622607Z",
          "id": "CVE-2026-67322",
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            },
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            },
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            }
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          "role": "CISA Coordinator",
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  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "configurations": [
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        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "3.1.52",
              "matchCriteriaId": "58F601BC-81B8-4618-BF3C-2CC77129FC9C"
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          ]
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    }
  ],
  "references": [
    {
      "url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-rwj8-pgh3-r573",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.vulncheck.com/advisories/gitpython-before-environment-variable-exfiltration-via-clone-from",
      "source": "[email protected]",
      "tags": [
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}