cve.bz

CVE-2026-25891

7.7 highEPSS 0.7%

High (7.7) in gofiber fiber. EPSS 0.7% chance of exploitation in the next 30 days. Fixed in github.com/gofiber/fiber/v3 3.1.0.

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. This affects Fiber v3 through version 3.0.0. This has been patched in Fiber v3 version 3.1.0.

Severity

CVSS 4.0

7.7 high
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
CWE
CWE-22
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-m3c2-496v-cw3vGogithub.com/gofiber/fiber/v3<3.1.03.1.0
GO-2026-4540Gogithub.com/gofiber/fiber/v3<3.1.03.1.0

References

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