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VULNERABILITIES

CVE-2026-118651 Details

Description

Echo is a Go web framework. From 4.0.0 until 5.4.0, the Proxy middleware can preserve an attacker-supplied X-Real-IP header and forward it to an upstream service when Echo.IPExtractor is not configured. A remote client can therefore make upstream services receive a spoofed client address, undermining IP-based access controls, rate limiting, audit logging, or geographic restrictions that trust Echo's forwarded identity. This issue is fixed in Echo 5.4.0.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/labstack/echo/commit/fc410094b2f3415cf2bf5204082137b205bfd5af [email protected]
https://github.com/labstack/echo/releases/tag/v5.4.0 [email protected]
https://github.com/labstack/echo/security/advisories/GHSA-99jh-6h7p-pp36 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-346Origin Validation Error[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-118651
NVD Published Date:
Oct 28, 2026
NVD Last Modified:
Oct 29, 2026
Source:
[email protected]
CVE-2026-118651 Details - Not Deferred