{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-78678",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-25T15:17:54.526774Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-25T15:18:02.854Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-5xxx-qhh7-9287"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:pypi/GitPython",
          "product": "GitPython",
          "vendor": "gitpython-developers",
          "versions": [
            {
              "lessThan": "3.1.59",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "3.1.59",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "3.1.59",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "manus-use"
        }
      ],
      "datePublic": "2026-08-10T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "GitPython versions before 3.1.59 contain an incomplete denylist in the unsafe_git_revision_options guard that omits --contents and -S options, allowing attackers to read arbitrary files by passing these options to Repo.blame(). Attackers can supply revision values like --contents=/etc/passwd to leak file contents through the blame result returned to the caller."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-88",
              "description": "Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-25T01:30:35.582Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-5xxx-qhh7-9287)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-5xxx-qhh7-9287"
        },
        {
          "name": "VulnCheck Advisory: GitPython before 3.1.59 Arbitrary File Read via Repo.blame()",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/gitpython-before-arbitrary-file-read-via-repo-blame"
        }
      ],
      "title": "GitPython before 3.1.59 Arbitrary File Read via Repo.blame()",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-78678",
    "datePublished": "2026-08-25T01:30:35.582Z",
    "dateReserved": "2026-08-25T01:17:12.262Z",
    "dateUpdated": "2026-08-25T15:18:02.854Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.1.58"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "GitPython"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.59"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-78678"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-88"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-08T18:41:31Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Summary\n`Repo.blame()` / `Repo.blame_incremental()` guard forwarded revision options against `unsafe_git_revision_options`, but that denylist only contains the file-WRITE options `--output`/`-o`. `git blame` also honors `--contents \u003cfile\u003e` and `-S \u003cfile\u003e`, which cause the file\u0027s lines to be echoed into the blame result \u2014 an arbitrary file READ. Neither option is in the denylist, so a caller-influenced revision value of `--contents=\u003cpath\u003e` passes the guard and leaks file contents. This is a distinct sink-option and impact class (READ) from GHSA-956x-8gvw-wg5v (which addressed the blame `--output` WRITE), directly analogous to GHSA-539m-9xh6-q6rr (archive READ gap accepted separately from the archive write/exec advisory).\n\n## Root Cause\n`unsafe_git_revision_options = [\"--output\",\"-o\"]` (`git/repo/base.py:188`). The `rev` string is passed to `_option_candidates([rev], kwargs)` and placed BEFORE the `--` separator (base.py:841). The canonical name of `--contents=...` is `contents`, which is not on the denylist, so no `UnsafeOptionError` is raised. The trailing `--` protects only the pathspec, not the option before the revision.\n\n## Impact\nArbitrary local file read at the privileges of the host process; the file\u0027s line contents appear in the blame result returned to the caller. Pure VALUE control (the caller forwards a user-influenced revision string). Default `allow_unsafe_options=False`.\n\n## Proof of Concept\n```python\nresult = repo.blame(\"--contents=/etc/passwd\", \"a.txt\")\n# result rows carry the victim file\u0027s line text\n```\n\n## Attack Chain\n1. Entry: app calls `repo.blame(rev, file)` with attacker `rev=\"--contents=/etc/passwd\"` (or kwarg `contents=\"/etc/passwd\"`, or `-S`).\n2. Check: `Git.check_unsafe_options(_option_candidates([rev,...], kwargs), unsafe_git_revision_options)` @ base.py:841. Guard: denylist = `[\"--output\",\"-o\"]` only. Bypass proof: canonical name `contents` \u2209 denylist \u2192 no error.\n3. Sink: `self.git.blame(rev, \"--\", file, p=True, ...)`. argv (observed): `[\u0027git\u0027,\u0027blame\u0027,\u0027-p\u0027,\u0027--contents=\u003csecret\u003e\u0027,\u0027HEAD\u0027,\u0027--\u0027,\u0027a.txt\u0027]`.\n4. Impact: blame result rows carry the victim file\u0027s line text.\n\n## Bypass Evidence\nIndependently reproduced (independent test harness, default `allow_unsafe_options=False`): `blame(\u0027--contents=\u003csecret\u003e\u0027,\u0027a.txt\u0027)` \u2192 guard PASSED; result rows = `[\u0027GATE_SECRET_LINE_A\u0027,\u0027GATE_SECRET_LINE_B\u0027]`. Control: `blame(\u0027--output=\u2026\u0027)` still BLOCKED (guard active on this path). `-S` kwarg argv also reaches git unguarded.\n\n## Affected Versions\n`GitPython \u003c= 3.1.58` (denylist present verbatim on the latest release tag).\n\n## Suggested Fix\nPrefer an allowlist of blame options; at minimum add `--contents`/`-S` (and any other path-taking blame options) to `unsafe_git_revision_options`, and make the membership rule \"the option takes a filesystem path\" rather than \"the option writes output\".\n\n---\nReported by **zx (Jace)** \u2014 GitHub: @manus-use",
  "id": "GHSA-5xxx-qhh7-9287",
  "modified": "2026-09-08T18:41:31Z",
  "published": "2026-09-08T18:41:31Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-5xxx-qhh7-9287"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78678"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/gitpython-developers/GitPython"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/gitpython/PYSEC-2026-3788.yaml"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/gitpython-before-arbitrary-file-read-via-repo-blame"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "GitPython: Incomplete unsafe_git_revision_options denylist omits --contents/-S, enabling arbitrary file read via Repo.blame()"
}