{"id":"CVE-2026-58426","aliases":["GHSA-hg5r-vq93-9fv6","GO-2026-6060"],"url":"https://o3.security/vulnerability/CVE-2026-58426","summary":"Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write","details":"Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write","published":"2026-07-03T20:54:53.283Z","modified":"2026-08-12T18:47:59.784166038Z","cvss":{"score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"code.gitea.io/gitea","fixedVersion":"1.26.2"}],"fix":{"url":"https://github.com/go-gitea/gitea/pull/37707","label":"go-gitea/gitea#37707"},"references":[{"type":"ADVISORY","url":"https://blog.gitea.com/release-of-1.26.2/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58426.json"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/releases/tag/v1.26.2"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-hg5r-vq93-9fv6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58426"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/37707"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T18:47:59.784166038Z"}}