CVE-2026-118653Echo: Rate Limiter Bypass via Spoofed X-Forwarded-For Header in Default Configuration

Descripción

Echo is a Go web framework. From 4.0.0 until 5.1.0, Context.RealIP falls back to client-supplied X-Forwarded-For or X-Real-IP values when Echo.IPExtractor is unset, and the default RateLimiter uses that result as its client identifier. A remote attacker can rotate arbitrary forwarded-address values to obtain new rate-limit buckets and bypass IP-based throttling used for controls such as brute-force or request-volume protection. This issue is fixed in Echo v5.1.0.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• https://github.com/labstack/echo/security/advisories/GHSA-246p-cpwv-v3jq
• https://github.com/labstack/echo/commit/22e4b71109ef072ef011a489066ec662ca9565b2
• https://github.com/labstack/echo/releases/tag/v5.1.0