CVE-2026-118655
CVE-2026-118655 · Echo: Static Middleware Double-Unescape Path Traversal
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, middleware.Static can decode an already decoded Request.URL.Path a second time. Double-encoded separators can consequently be reconstructed before filesystem resolution. This can reach a file under a guarded route when the static middleware is registered globally. This issue is fixed in 4.15.3 and 5.2.0.
CVSS 5.9 · Medium · EPSS 0.3%
- Published
- Updated
Stack: system
Affected products and versions
echo
- Versions
- >= 5.0.0, < 5.2.0: Affected
- < 4.15.3: 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
Original sources
- https://github.com/labstack/echo/security/advisories/GHSA-xwq5-6cqp-vx96
- https://github.com/labstack/echo/issues/2599
- https://github.com/labstack/echo/pull/3006
- https://github.com/labstack/echo/commit/a9ede66a5a7196411131beb1ee801e75bbaf7ac6
- https://github.com/labstack/echo/commit/c3fa2a27ff92b2b8db360de614f999ef1da24725
- https://github.com/labstack/echo/releases/tag/v4.15.3
- https://github.com/labstack/echo/releases/tag/v5.2.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-118655