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CVE-2023-41040

Estado: ModificadaMedia (6.5)—

GitPython is a python library used to interact with Git repositories. In order to resolve some git references, GitPython reads files from the `.git` directory, in some places the name of the file being read is provided by the user, GitPython doesn't check if this file is located outside the `.git` directory. This allows an attacker to make GitPython read any file from the system. This vulnerability is present in https://github.com/gitpython-developers/GitPython/blob/1c8310d7cae144f74a671cbe17e51f63a830adbf/git/refs/symbolic.py#L174-L175.

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That code joins the base directory with a user given string without checking if the final path is located outside the base directory. This vulnerability cannot be used to read the contents of files but could in theory be used to trigger a denial of service for the program. This issue has been addressed in version 3.1.37.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Gitpython Project — Gitpython

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-41040",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-41040",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-01T18:04:46.833039Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.5
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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      "affectedData": [
        {
          "vendor": "gitpython-developers",
          "product": "GitPython",
          "versions": [
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              "status": "affected",
              "version": "< 3.1.37"
            }
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        }
      ]
    }
  ],
  "published": "2023-08-30T22:15:09.857",
  "references": [
    {
      "url": "https://github.com/gitpython-developers/GitPython/blob/1c8310d7cae144f74a671cbe17e51f63a830adbf/git/refs/symbolic.py#L174-L175",
      "tags": [
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      "url": "https://github.com/gitpython-developers/GitPython/commit/74e55ee4544867e1bd976b7df5a45869ee397b0b",
      "source": "security-advisories@github.com"
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    {
      "url": "https://github.com/gitpython-developers/GitPython/commit/e98f57b81f792f0f5e18d33ee658ae395f9aa3c4",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/gitpython-developers/GitPython/pull/1672",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/gitpython-developers/GitPython/releases/tag/3.1.37",
      "source": "security-advisories@github.com"
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    {
      "url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-cwvm-v4w8-q58c",
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    {
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      "source": "security-advisories@github.com"
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    {
      "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00036.html",
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-cwvm-v4w8-q58c",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "GitPython is a python library used to interact with Git repositories. In order to resolve some git references, GitPython reads files from the `.git` directory, in some places the name of the file being read is provided by the user, GitPython doesn't check if this file is located outside the `.git` directory. This allows an attacker to make GitPython read any file from the system. This vulnerability is present in https://github.com/gitpython-developers/GitPython/blob/1c8310d7cae144f74a671cbe17e51f63a830adbf/git/refs/symbolic.py#L174-L175. That code joins the base directory with a user given string without checking if the final path is located outside the base directory. This vulnerability cannot be used to read the contents of files but could in theory be used to trigger a denial of service for the program. This issue has been addressed in version 3.1.37."
    },
    {
      "lang": "es",
      "value": "GitPython es una biblioteca de python utilizada para interactuar con repositorios Git. Para resolver algunas referencias de git, GitPython lee archivos del directorio `.git`, en algunos lugares el nombre del archivo que se lee es proporcionado por el usuario, GitPython no verifica si este archivo está ubicado fuera del directorio `.git`. Esto permite a un atacante hacer que GitPython lea cualquier archivo del sistema. Esta vulnerabilidad está presente en https://github.com/gitpython-developers/GitPython/blob/1c8310d7cae144f74a671cbe17e51f63a830adbf/git/refs/symbolic.py#L174-L175. Ese código une el directorio base con una cadena proporcionada por el usuario sin verificar si la ruta final está ubicada fuera del directorio base. Esta vulnerabilidad no puede ser utilizada para leer el contenido de archivos, pero en teoría podría ser utilizada para desencadenar una denegación de servicio para el programa. Este problema ha sido abordado en la versión 3.1.37."
    }
  ],
  "lastModified": "2026-06-17T06:20:14.253",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AC6BBB91-00CE-4AAE-9B5F-B66261632464",
              "versionEndIncluding": "3.1.34"
            }
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          "operator": "OR"
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  "sourceIdentifier": "security-advisories@github.com"
}