CVE-2026-118265
CVE-2026-118265 · Echo: X-Real-IP extractor trusts the header value instead of the sending peer
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Echo is a Go web framework. From 5.0.0 until 5.4.1, Echo v5's ExtractIPFromRealIPHeader validates whether the client-supplied X-Real-IP value belongs to a trusted range instead of validating the direct network peer. A client reaching Echo directly, or through a proxy that preserves the header, can supply a loopback or private address and have Context.RealIP return that spoofed identity. Applications using the extractor for IP allowlists, rate limiting, audit logs, or forwarding headers can consequently trust an attacker-controlled address; the default direct extractor and Echo v4 are unaffected. This issue is fixed in 5.4.1.
CVSS 5.3 · Medium · EPSS 0.1%
- Published
- Updated
Stack: system
Affected products and versions
echo
- Versions
- >= 5.0.0, < 5.4.1: Affected
No fix published
golang-github-labstack-echo.v2 Ubuntu:20.04:LTS
- Versions
- 2.2.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-labstack-echo.v3 Ubuntu:20.04:LTS
- Versions
- 3.3.5-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-labstack-echo Ubuntu:22.04:LTS
- Versions
- 4.2.1-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-labstack-echo.v2 Ubuntu:22.04:LTS
- Versions
- 2.2.0-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-labstack-echo.v3 Ubuntu:22.04:LTS
- Versions
- 3.3.10-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-labstack-echo Ubuntu:24.04:LTS
- Versions
- 4.11.1-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-labstack-echo Ubuntu:26.10
- Versions
- 4.12.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-labstack-echo Ubuntu:26.04:LTS
- Versions
- 4.12.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published