Is github.com/gofiber/fiber/v2 affected by CVE-2026-25882?

Go github.com/gofiber/fiber/v2 is affected in <2.52.12.

Is CVE-2026-25882 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.6%.

medium

CVE-2026-25882

Q: Is CVE-2026-25882 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.6%.

Go · github.com/gofiber/fiber/v2 • Go · github.com/gofiber/fiber/v3

Summary

Fiber has a Denial of Service Vulnerability via Route Parameter Overflow in github.com/gofiber/fiber

Severity: medium
EPSS: 0.6% (p44)
Also known as: GHSA-mrq8-rjmw-wpq3, GHSA-mrq8-rjmw-wpq3#github.com/gofiber/fiber/v2, GHSA-mrq8-rjmw-wpq3#github.com/gofiber/fiber/v3, GO-2026-4543, GO-2026-4543#github.com/gofiber/fiber/v2, GO-2026-4543#github.com/gofiber/fiber/v3
Published: 2026-02-26

References

Related advisories

CVE-2026-42554 — medium · Go/github.com/gofiber/fiber/v2
CVE-2025-66630 — medium · Go/github.com/gofiber/fiber/v2

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.