Dashboard / CVE-2026-118651

CVE-2026-118651

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 71/100
Published: 2026-10-28 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: Low
A: None

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
labstack echo >= 4.0.0, < 5.4.0
labstack echo >= 4.0.0, < 5.4.0

References & Advisories (3)

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploitation Probability

0.21%
Raw Score 0.002070
Percentile 10.8%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →

External Links