CVE-2025-66630

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/gofiber/fiber/commit/eb874b6f6c5896b968d9b0ab2b56ac7052cb0ee1
https://github.com/gofiber/fiber/releases/tag/v2.52.11
https://github.com/gofiber/fiber/security/advisories/GHSA-68rr-p4fp-j59v

Configurations

No configuration.

History

09 Feb 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-09 18:16

Updated : 2026-02-09 21:55

NVD link : CVE-2025-66630

Mitre link : CVE-2025-66630

CVE.ORG link : CVE-2025-66630

JSON object : View

Products Affected

No product.

CWE

CWE-338

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

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