{"action":"Upgrade gitea.dev to 1.27.0 or later.","affected":[{"fixed":"1.27.0","introduced":"0"}],"component":"gitea.dev","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_01M5KGRQ36CNAN18EZRQHMG5VW","modified_at":"2026-07-27T17:00:24.926633412Z","published_at":"2026-07-27T15:32:45Z","references":["https://osv.dev/vulnerability/GO-2026-6083","https://github.com/go-gitea/gitea/security/advisories/GHSA-x77v-q46j-393g","https://github.com/go-gitea/gitea/commit/de4b8277e9cb576f2315fb03b5ab6478b42a1d31","https://github.com/go-gitea/gitea/commit/f69e15afe7496cc62e96dab244629c69eb31a7bf","https://github.com/go-gitea/gitea/pull/38406","https://github.com/go-gitea/gitea/pull/38426","https://github.com/go-gitea/gitea/releases/tag/v1.27.0"],"severity":{"label":"low","score":3.1},"sources":[{"source":"osv","source_id":"GO-2026-6083","url":"https://osv.dev/vulnerability/GO-2026-6083"},{"source":"nvd","source_id":"CVE-2026-23603","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23603"}],"summary":"Gitea: Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim in gitea.dev"}