{"id":"EUVD-2025-201791","enisaUuid":"cb1160f5-8db7-3ba6-92e8-ef1b2a692a83","description":"Fiber Utils is a collection of common functions created for Fiber. In versions 2.0.0-rc.3 and below, when the system\u0027s 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.","datePublished":"Dec 9, 2025, 1:47:58 AM","dateUpdated":"Dec 9, 2025, 4:03:03 PM","baseScore":9.3,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","references":"https://github.com/gofiber/utils/security/advisories/GHSA-m98w-cqp3-qcqr\nhttps://github.com/gofiber/utils/commit/6c6cf047032b9c8dff43d29f990b4b10e9b02d47\n","aliases":"CVE-2025-66565\nGHSA-m98w-cqp3-qcqr\n","assigner":"GitHub_M","epss":0.47,"enisaIdProduct":[{"id":"80297215-5eb9-3070-b63a-0c3f3e007f78","product":{"name":"utils","vendor":{"name":"RustCrypto"}},"product_version":"github.com/gofiber/utils/v2 \u003c 2.0.0-rc.4"},{"id":"cf072357-e9d1-3ddf-9128-24c5f8d750e6","product":{"name":"utils","vendor":{"name":"RustCrypto"}},"product_version":"github.com/gofiber/utils ≤ 1.2.0"}],"enisaIdVendor":[{"id":"667f1aa5-a1b2-3341-ada9-9cfa946ec189","vendor":{"name":"gofiber"}}],"enisaIdVulnerability":[{"id":"6a5e838c-fd7d-3b01-b0ad-0d17a28de054","vulnerability":{"id":"CVE-2025-66565","description":"Fiber Utils is a collection of common functions created for Fiber. In versions 2.0.0-rc.3 and below, when the system\u0027s 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.","datePublished":"Dec 9, 2025, 1:47:58 AM","dateUpdated":"Dec 9, 2025, 4:03:03 PM","status":"PUBLISHED","baseScore":9.3,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","references":"https://github.com/gofiber/utils/security/advisories/GHSA-m98w-cqp3-qcqr\nhttps://github.com/gofiber/utils/commit/6c6cf047032b9c8dff43d29f990b4b10e9b02d47\n","enisa_id":"EUVD-2025-201791\n","assigner":"GitHub_M","epss":0.47,"dataProcessed":"Nov 6, 2026, 7:21:48 AM","vulnerabilityProduct":[{"id":"144bccb7-2554-3034-bf18-e5c8f7af6f94","product":{"name":"utils","vendor":{"name":"RustCrypto"}},"product_version":"github.com/gofiber/utils ≤ 1.2.0"},{"id":"8e1380f7-d864-34d4-9e77-44945e80f0d4","product":{"name":"utils","vendor":{"name":"RustCrypto"}},"product_version":"github.com/gofiber/utils/v2 \u003c 2.0.0-rc.4"}],"vulnerabilityVendor":[{"id":"85ddc438-83c2-36e5-a1c4-9082565d6d0b","vendor":{"name":"gofiber"}}]}},{"id":"90b1ed1c-1d65-37f3-8c58-b244ecb87edb","vulnerability":{"id":"GHSA-m98w-cqp3-qcqr","description":"Fiber Utils UUIDv4 and UUID Silent Fallback to Predictable Values","datePublished":"Dec 8, 2025, 5:57:26 PM","dateUpdated":"Dec 12, 2025, 4:30:26 PM","baseScore":0.0,"references":"https://github.com/gofiber/utils/security/advisories/GHSA-m98w-cqp3-qcqr\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-66565\nhttps://github.com/gofiber/utils/commit/6c6cf047032b9c8dff43d29f990b4b10e9b02d47\nhttps://github.com/gofiber/utils\n","enisa_id":"EUVD-2025-201791\n","aliases":"CVE-2025-66565\nGHSA-m98w-cqp3-qcqr\n","epss":0.0,"dataProcessed":"Nov 1, 2026, 1:56:58 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}}],"enisaIdAdvisory":[]}