CVE-2026-25899
Fiber is Vulnerable to Denial of Service via Flash Cookie Unbounded Allocation in github.com/gofiber/fiber/v3
7.5
HIGH
CVSS 3.1
EPSS 0.13%
Description
Fiber is Vulnerable to Denial of Service via Flash Cookie Unbounded Allocation in github.com/gofiber/fiber/v3
How to fix CVE-2026-25899
To remediate CVE-2026-25899, upgrade the affected package to a fixed version below.
- Go/github.com/gofiber/fiber/v3—upgrade to 3.1.0 or later
- —upgrade to 3.1.0 or later
Is CVE-2026-25899 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.1.0
- from 0, < 3.1.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |