🛡️ CVE-2026-25882
🟠 CVSS 7.5 — High ⚠️ Exploit Public CWE-129 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-129
Public Exploit ⚠️ Yes
Source NVD
Published 2026-02-24
Updated 2026-06-15
Modified 2026-02-27

Affected Packages

Software From version Fixed in
fiber 3.0.0 3.1.0
github.com/gofiber/fiber/v2
github.com/gofiber/fiber/v3

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