CVE-2026-82402

CVE-2026-82402 · Gogs: Open Redirect in /redirect endpoint via backslash bypass in `IsSameSite`

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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.

CVSS 5.3 · Средний · EPSS 0,4%

Опубликовано

2026-10-14T18:49:19.768Z

Обновлено

2026-10-20T01:58:51.683Z

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