Echo has Arbitrary Scheme Injection in WWWRedirect/NonWWWRedirect Middlewares via X-Forwarded-Proto

影響: go:github.com/labstack/echo/v5 < 5.1.1 → 5.1.1, go:github.com/labstack/echo/v4 < 4.15.2 → 4.15.2

The c.Scheme() method in Echo (context.go:162-181) trusts the X-Forwarded-Proto, X-Forwarded-Protocol, and X-Url-Scheme request headers without validating that the value is http or https. The WWWRedirect() and NonWWWRedirect() middlewares use this unsanitized scheme to construct redirect URLs, allowing an attacker to inject arbitrary URI schemes into the Location response header. Affected Components - context.go:162-181 - Scheme() method returns attacker-controlled value verbatim - middleware/r…

GitHub Advisory Database에서 읽기

2026. 10. 29. 오전 06:04, GitHub Advisory Database에서 "Echo has Arbitrary Scheme Injection in WWWRedirect/NonWWWRedirect Middlewares via X-Forwarded-Proto"을(를) 게시했습니다 (유형: 취약점 권고). 심각도는 "보통"(medium)입니다. 관련 기술: Go, GitHub. CVE: CVE-2026-118658.