{"schema_version":"1.3.1","id":"GO-2026-6342","modified":"2026-09-02T18:37:32Z","published":"2026-09-02T18:37:32Z","aliases":["CVE-2026-26247","GHSA-m5ch-ppfx-xv3v"],"summary":"Gitea OAuth2 PKCE S256 verifier bypass in code.gitea.io/gitea","details":"Gitea OAuth2 PKCE S256 verifier bypass in code.gitea.io/gitea","affected":[{"package":{"name":"code.gitea.io/gitea","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.25.5"}]}],"ecosystem_specific":{}}],"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-m5ch-ppfx-xv3v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26247"},{"type":"WEB","url":"https://blog.gitea.com/release-of-1.25.5"},{"type":"WEB","url":"https://github.com/go-gitea/gitea/commit/750649c1ef092c95f95b206b9d5fa17471a0b1f5"},{"type":"WEB","url":"https://github.com/go-gitea/gitea/commit/bf8d11bb212ba2a76596d8a90e74e7d664571324"},{"type":"WEB","url":"https://github.com/go-gitea/gitea/pull/36462"},{"type":"WEB","url":"https://github.com/go-gitea/gitea/pull/36477"},{"type":"WEB","url":"https://github.com/go-gitea/gitea/releases/tag/v1.25.5"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-6342","review_status":"UNREVIEWED"}}