Path Traversal in Labstack Echo
CVE-2026-25766
Echo is a Go web framework. In versions 5.0.0 through 5.0.2 on Windows, Echo’s `middleware.Static` using the default filesystem allows path traversal via backslashes, enabling unauthenticated remote file read outside the static root. In `m…
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.003 (24.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Labstack Echo — versions >= 5.0.0, < 5.0.3
- Microsoft Windows
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-25766?
- CVE-2026-25766 is a medium-severity vulnerability in Labstack Echo, classified under Path Traversal. CVSS score: 5.3/10. Published 2026-02-19.
- How severe is CVE-2026-25766?
- Medium severity. CVSS v3 base score is 5.3 out of 10.