{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.14.3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1fdc9cc28e159135cfa4d6b11ecd5daa0f8ce22b"
            },
            {
              "fixed": "3ba8aca90e17e5410b7e8b227c9f29256ac3e875"
            }
          ],
          "repo": "https://github.com/gogs/gogs",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-4565-r4x7-hg8j"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-193"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52804.json"
  },
  "details": "Gogs is an open source self-hosted Git service. Prior to 0.14.3, a repository admin collaborator can escalate their privileges to owner-level access by exploiting an off-by-one error in the ChangeCollaborationAccessMode function. This vulnerability is fixed in 0.14.3.",
  "id": "CVE-2026-52804",
  "modified": "2026-07-15T01:49:16.456941625Z",
  "published": "2026-06-24T20:20:26.848Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/gogs/gogs/releases/tag/v0.14.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52804.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/gogs/gogs/security/advisories/GHSA-4565-r4x7-hg8j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52804"
    },
    {
      "type": "FIX",
      "url": "https://github.com/gogs/gogs/commit/1fdc9cc28e159135cfa4d6b11ecd5daa0f8ce22b"
    },
    {
      "type": "FIX",
      "url": "https://github.com/gogs/gogs/pull/8227"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Gogs: Privilege Escalation via Collaboration Access Mode Validation"
}