Path Traversal in Labstack Echo
CVE-2026-118654
Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, Echo's static file handlers can normalize dot segments after route matching and serve a file through a public static route even though the corresponding direct path is protected by route-level middleware. An unauthenticated attacker can read files that an application intended to protect with route-level middleware, when those files are also reachable through a static filesystem mount after path normalization. This vulnerability is the result of an incomplete fix for CVE-2026-55677. This issue is fixed in 4.16.0 and 5.4.0.
Vulnerability class: Path Traversal (Directory Traversal)
Published .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Labstack Echo — versions < 4.16.0, >= 5.0.0, < 5.4.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-118654?
- CVE-2026-118654 is a medium-severity vulnerability in Labstack Echo, classified under Path Traversal. CVSS score: 5.9/10. Published 2026-10-28.
- How severe is CVE-2026-118654?
- Medium severity. CVSS v3 base score is 5.9 out of 10.