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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 2
- StatusReceived → DeferredNVD modified 2026-10-16 20:04
- First seenCVSS 5.3NVD modified 2026-10-14 19:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- https://github.com/gogs/gogs/blob/main/CHANGELOG.md#0150dev-main
- https://github.com/gogs/gogs/commit/0aa820e6d572771551871c0b5f5f32dffc565e3e
- https://github.com/gogs/gogs/pull/8391
- https://github.com/gogs/gogs/security/advisories/GHSA-3g28-2vwg-gxq6
- https://github.com/gogs/gogs/security/advisories/GHSA-3g28-2vwg-gxq6