Gofiber Utils vulnerabilities
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Published CVEs affecting Gofiber Utils: 1 record(s), with affected versions and fixes.cpe:2.3:a:gofiber:utils
CVE-2025-66565
Critical · 9.8
CWE-252 Dec 9, 2025
Fiber Utils UUIDv4 and UUID Silent Fallback to Predictable Values
Fiber Utils is a collection of common functions created for Fiber. In versions 2.0.0-rc.3 and below, when the system's cryptographic random number generator (crypto/rand) fails, both functions silently fall back to returning predictable UUID values, including the zero UUID "00000000-0000-0000-0000-000000000000". The vulnerability occurs through two related but distinct failure paths, both ultimately caused by crypto/rand.Read() failures, compromising the security of all Fiber applications using these functions for security-critical operations. This issue is fixed in version 2.0.0-rc.4.