CVE-2025-66630
Fiber has an insecure fallback in utils.UUIDv4() / utils.UUID() on crypto/rand failure in github.com/gofiber/fiber
EPSS 0.02%
Description
Fiber has an insecure fallback in utils.UUIDv4() / utils.UUID() — predictable / zero‑UUID on crypto/rand failure in github.com/gofiber/fiber
How to fix CVE-2025-66630
To remediate CVE-2025-66630, upgrade the affected package to a fixed version below.
- Go/github.com/gofiber/fiber—no fix listed
- Go/github.com/gofiber/fiber/v2—upgrade to 2.52.11 or later
- Go/github.com/gofiber/fiber/v2—upgrade to 2.52.11 or later
Is CVE-2025-66630 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0
- from 0, < 2.52.11
- from 0, < 2.52.11
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |