{"id":"CVE-2026-82402","published":"2026-10-14T19:17:21.660","lastModified":"2026-10-16T20:04:29.760","description":"Gogs is an open source self-hosted Git service. Prior to 0.15.0+dev, an unauthenticated attacker can provide a backslash-containing target to the /redirect endpoint, and similar post-action redirect flows are also affected. internal/urlx/urlx.go IsSameSite validates a normalized form of the target while cmd/gogs/internal/web/web.go getRedirect and other callers use the original value in the Location response. This backslash normalization mismatch lets browsers interpret the Location value as a scheme-relative external URL, allowing links on a trusted Gogs domain to redirect victims to attacker-controlled content for phishing. This vulnerability is fixed in 0.15.0+dev.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-601"],"vendors":[],"products":[],"references":[{"url":"https://github.com/gogs/gogs/blob/main/CHANGELOG.md#0150dev-main","tags":[]},{"url":"https://github.com/gogs/gogs/commit/0aa820e6d572771551871c0b5f5f32dffc565e3e","tags":[]},{"url":"https://github.com/gogs/gogs/pull/8391","tags":[]},{"url":"https://github.com/gogs/gogs/security/advisories/GHSA-3g28-2vwg-gxq6","tags":[]}],"exploitRefs":[{"url":"https://github.com/gogs/gogs/blob/main/CHANGELOG.md#0150dev-main","tags":[]},{"url":"https://github.com/gogs/gogs/commit/0aa820e6d572771551871c0b5f5f32dffc565e3e","tags":[]},{"url":"https://github.com/gogs/gogs/pull/8391","tags":[]},{"url":"https://github.com/gogs/gogs/security/advisories/GHSA-3g28-2vwg-gxq6","tags":[]}],"hasPoc":true,"ai":null}