Path Traversal in Gofiber Fiber
CVE-2026-25891
Fiber is an Express inspired web framework written in Go. A Path Traversal (CWE-22) vulnerability in Fiber allows a remote attacker to bypass the static middleware sanitizer and read arbitrary files on the server file system on Windows. Th…
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.006 (45.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Gofiber Fiber — versions >= 3.0.0, < 3.1.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Exploit, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-25891?
- CVE-2026-25891 is a high-severity vulnerability in Gofiber Fiber, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-02-24.
- How severe is CVE-2026-25891?
- High severity. CVSS v3 base score is 7.5 out of 10.