{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.2.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6a7180a9dfcb276755a8af99dd78155f775a6b14"
            }
          ],
          "repo": "https://github.com/gitpython-developers/gitpython",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-m64x-33q8-m5h7"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-1333"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110856.json"
  },
  "details": "GitPython before 3.2.0 contains a regular expression denial of service vulnerability in the _re_actor_epoch pattern used by parse_actor_and_date on author, committer, and tagger lines. Attackers can serve repositories with commit or tag objects containing long space-filled lines lacking a valid epoch or timezone, causing quadratic backtracking and CPU exhaustion.",
  "id": "CVE-2026-110856",
  "modified": "2026-10-16T02:30:50.116166407Z",
  "published": "2026-10-14T22:52:38.541Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110856.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-m64x-33q8-m5h7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110856"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/gitpython-before-3.2.0-redos-via-re-actor-epoch-in-parse-actor-and-date"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "GitPython before 3.2.0 ReDoS via _re_actor_epoch in parse_actor_and_date"
}