{"action":"Upgrade code.gitea.io/gitea to 1.27.0 or later.","affected":[{"fixed":"1.27.0","introduced":"0"}],"component":"code.gitea.io/gitea","cve_ids":["CVE-2026-23603"],"ecosystem":"Go","epss":0.0029,"exploited":false,"fixed_versions":["1.27.0"],"ghsa_id":"GHSA-x77v-q46j-393g","id":"tcs_01M5KFRS8Z9B21ND31RSXARTNP","modified_at":"2026-07-27T17:11:33.698630427Z","published_at":"2026-07-21T20:22:23Z","references":["https://osv.dev/vulnerability/GHSA-x77v-q46j-393g","https://github.com/go-gitea/gitea/security/advisories/GHSA-x77v-q46j-393g","https://github.com/go-gitea/gitea/pull/38406","https://github.com/go-gitea/gitea/pull/38426","https://github.com/go-gitea/gitea/commit/de4b8277e9cb576f2315fb03b5ab6478b42a1d31","https://github.com/go-gitea/gitea/commit/f69e15afe7496cc62e96dab244629c69eb31a7bf","https://github.com/go-gitea/gitea","https://github.com/go-gitea/gitea/releases/tag/v1.27.0"],"severity":{"label":"low","score":3.1},"sources":[{"source":"osv","source_id":"GHSA-x77v-q46j-393g","url":"https://osv.dev/vulnerability/GHSA-x77v-q46j-393g"}],"summary":"Gitea: Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim"}