CVE-2026-25882Fiber is an Express inspired web framework written in Go.
Updated under an hour ago ()
Does this affect you?
It affects gofiber fiber. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
Fiber is an Express inspired web framework written in Go. A denial of service vulnerability exists in Fiber v2 and v3 that allows remote attackers to crash the application by sending requests to routes with more than 30 parameters. The vulnerability results from missing validation during route registration combined with an unbounded array write during request matching. Version 2.52.12 patches the issue in the v2 branch and 3.1.0 patches the issue in the v3 branch.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-129
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
gofiber fiber gofiber:fiber | from 2.0.0 before 2.52.12; from 3.0.0 before 3.1.0 | NVD |
References
- https://github.com/gofiber/fiber/blob/main/path.go#L514product
- https://github.com/gofiber/fiber/blob/v2/path.go#L516product
- https://github.com/gofiber/fiber/pull/3962issue-tracking, patch
- https://github.com/gofiber/fiber/security/advisories/GHSA-mrq8-rjmw-wpq3exploit, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.