Gitea deploy key pushes acting as the repository owner

{
  "id": "ef3e875026453d4b045a23417e80121c7811f7fa557036fa79d97c4e79b1da29",
  "url": "https://osv.dev/vulnerability/BIT-gitea-2026-79960",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Gitea deploy key pushes acting as the repository owner",
    "summary": "When a push was authenticated with a deploy key, Gitea recorded the repository owner as the pusher, so permission checks in the push hook pipeline evaluated the owner instead of the deploy key. A holder of a writable deploy key could create protected tags without being on the tag allow list and change repository visibility through push options, for example making a private repository public. Pull requests created through the AGit flow with a deploy key were also attributed to the owner.",
    "evidence": "osv:BIT-gitea-2026-79960",
    "products": [
      {
        "name": {
          "value": "gitea",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "28.0.0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "BIT-gitea-2026-79960",
      "aliases": [
        "BIT-gitea-2026-79960",
        "CVE-2026-79960",
        "GHSA-7769-9pr9-m24h"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "28.0.0"
                }
              ]
            }
          ],
          "package": {
            "name": "gitea",
            "purl": "pkg:bitnami/gitea",
            "ecosystem": "Bitnami"
          },
          "severity": [
            {
              "type": "CVSS_V3",
              "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"
            }
          ],
          "database_specific": {
            "source": "https://github.com/bitnami/vulndb/tree/main/data/gitea/BIT-gitea-2026-79960.json"
          }
        }
      ],
      "modified": "2026-10-14T11:11:00.096062575Z",
      "provider": "osv",
      "references": [
        "https://blog.gitea.com/release-of-28.0.0/",
        "https://github.com/go-gitea/gitea/pull/37306",
        "https://github.com/go-gitea/gitea/releases/tag/v28.0.0",
        "https://github.com/go-gitea/gitea/security/advisories/GHSA-7769-9pr9-m24h",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-79960"
      ],
      "provider_metadata": {
        "cpes": [
          "cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*"
        ],
        "severity": "High"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-79960",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 316243,
  "published_at": "2026-10-14T08:43:02.338+00:00"
}