{"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-2026-56755"],"ecosystem":"Go","epss":0.00174,"exploited":false,"fixed_versions":["1.27.0"],"ghsa_id":"GHSA-6hm7-3pwj-22rm","id":"tcs_01M5KF08G86C06DFFWD576MZ0K","modified_at":"2026-07-22T21:11:15.758763076Z","published_at":"2026-07-21T20:24:09Z","references":["https://osv.dev/vulnerability/GHSA-6hm7-3pwj-22rm","https://github.com/go-gitea/gitea/security/advisories/GHSA-6hm7-3pwj-22rm","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":"high"},"sources":[{"source":"osv","source_id":"GHSA-6hm7-3pwj-22rm","url":"https://osv.dev/vulnerability/GHSA-6hm7-3pwj-22rm"}],"summary":"Gitea: Denial of Service (CPU & Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload"}