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.
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Tue, 09 Dec 2025 16:15:00 +0000
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ssvc
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Tue, 09 Dec 2025 10:30:00 +0000
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Gofiber
Gofiber utils |
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Gofiber
Gofiber utils |
Tue, 09 Dec 2025 02:00:00 +0000
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| Description | 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. | |
| Title | Fiber Utils UUIDv4 and UUID Silent Fallback to Predictable Values | |
| Weaknesses | CWE-252 CWE-331 CWE-338 |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-12-09T01:47:58.430Z
Updated: 2025-12-09T16:03:03.356Z
Reserved: 2025-12-04T16:05:22.975Z
Link: CVE-2025-66565
Updated: 2025-12-09T14:17:01.343Z
Status : Awaiting Analysis
Published: 2025-12-09T16:18:21.097
Modified: 2025-12-09T18:36:53.557
Link: CVE-2025-66565
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