CVE-2026-118655
mediumEcho is a Go web framework.
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
5.9 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Severity source: NVD CVSS v3.1 (security-advisories@github.com)
Timeline (UTC)
Published: 2026-10-28 20:17
Modified: 2026-10-28 20:17
NVD status: Received
Last synced 17 hours ago
Verified against the source API 2026-10-28 20:34 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/labstack/echo/commit/a9ede66a5a7196411131beb1ee801e75bbaf7ac6 security-advisories@github.com
- https://github.com/labstack/echo/commit/c3fa2a27ff92b2b8db360de614f999ef1da24725 security-advisories@github.com
- https://github.com/labstack/echo/issues/2599 security-advisories@github.com
- https://github.com/labstack/echo/pull/3006 security-advisories@github.com
- https://github.com/labstack/echo/releases/tag/v4.15.3 security-advisories@github.com
- https://github.com/labstack/echo/releases/tag/v5.2.0 security-advisories@github.com
- https://github.com/labstack/echo/security/advisories/GHSA-xwq5-6cqp-vx96 security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 20:34 UTC · record ↗