Fiber has a Denial of Service Vulnerability via Route Parameter Overflow (gofiber fiber)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.67 % · percentile 52 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
Description
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.
Weaknesses (CWE)
- CWE-129 — Improper Validation of Array Index
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | MEDIUM 5.5 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | GitHub_M |
| CVSS 4.0 | MEDIUM 5.5 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-mrq8-rjmw-wpq3 — Fiber has a Denial of Service Vulnerability via Route Parameter Overflow
- GO-2026-4543 — Fiber has a Denial of Service Vulnerability via Route Parameter Overflow in github.com/gofiber/fiber
European references
- ENISA EUVD · EUVD-2026-8563
- GCVE · GCVE-0-2026-25882
Affected configurations (NVD CPE)
cpe:2.3:a:gofiber:fiber:*:*:*:*:*:go:*:*≥ 2.0.0 < 2.52.12cpe:2.3:a:gofiber:fiber:*:*:*:*:*:go:*:*≥ 3.0.0 < 3.1.0
Affected products
| Product | Versions |
|---|---|
| gofiber · fiber | affected >= 2.0.0, < 2.52.12 ; affected >= 3.0.0, < 3.1.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |