CVE-2026-118656
CVE-2026-118656 · Echo: Open Redirect via Control-Character Prefix Defeating sanitizeURI
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, sanitizeURI checks only the first two bytes of a redirect target before deciding whether it begins with an absolute-path separator pair. When AddTrailingSlash or RemoveTrailingSlash is configured with a redirect status, a slash, TAB, separator path form can evade the guard, be emitted in the Location header, and be normalized by a browser into an attacker-controlled host. This issue is fixed in 4.16.0 and 5.4.0.
CVSS 6.1 · Medium · EPSS 0.2%
- Published
- Updated
Stack: system
Affected products and versions
echo
- Versions
- >= 5.0.0, < 5.4.0: Affected
- < 4.16.0: Affected
No fix published
golang-github-labstack-echo Debian:12
- Versions
- 4.11.1-1
- 4.11.1-2
- 4.12.0-1
- 4.2.1-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-labstack-echo Debian:13
- Versions
- 4.12.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-labstack-echo Debian:14
- Versions
- 4.12.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
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
Original sources
- https://github.com/labstack/echo/security/advisories/GHSA-v753-g4cw-jm48
- https://github.com/labstack/echo/commit/b838391e2eade87ae7e5a09d7bb5087bec271ec1
- https://github.com/labstack/echo/commit/fc410094b2f3415cf2bf5204082137b205bfd5af
- https://github.com/labstack/echo/releases/tag/v4.16.0
- https://github.com/labstack/echo/releases/tag/v5.4.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-118656