CVE-2025-66630

CRITICAL

9.4

Description

Fiber is an Express inspired web framework written in Go. Before 2.52.11, on Go versions prior to 1.24, the underlying crypto/rand implementation can return an error if secure randomness cannot be obtained. Because no error is returned by the Fiber v2 UUID functions, application code may unknowingly rely on predictable, repeated, or low-entropy identifiers in security-critical pathways. This is especially impactful because many Fiber v2 middleware components (session middleware, CSRF, rate limiting, request-ID generation, etc.) default to using utils.UUIDv4(). This vulnerability is fixed in 2.52.11.

Details CVE

Score CVSS v3.19.4

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie2/9/2026

Derniere modification2/28/2026

Sourcenvd

Observations honeypot0

Produits affectes

gofiber:fibergolang:go

Faiblesses (CWE)

CWE-338

References

https://github.com/gofiber/fiber/commit/eb874b6f6c5896b968d9b0ab2b56ac7052cb0ee1(security-advisories@github.com)

https://github.com/gofiber/fiber/releases/tag/v2.52.11(security-advisories@github.com)

https://github.com/gofiber/fiber/security/advisories/GHSA-68rr-p4fp-j59v(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.