{"id":"CVE-2026-44332","revision":"18a686d2215d445fb070801ab6c507d1","records":[{"revision":"18a686d2215d445fb070801ab6c507d1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-44332","aliases":[],"title":"Fiber: Username Enumeration via Timing Oracle in BasicAuth Default Authorizer","description":"Fiber is an Express inspired web framework written in Go. Prior to 3.3.0, the default Authorizer function in the BasicAuth middleware in middleware/basicauth/config.go uses short-circuit evaluation that skips password hash comparison for non-existent usernames, enabling reliable remote username enumeration through response timing differences. This issue is fixed in version 3.3.0.","state":0,"publishedAt":"2026-07-08T19:32:15.113+00:00","modifiedAt":"2026-07-09T14:33:29.004+00:00","affected":[{"ecosystem":"Vendor product","name":"fiber","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"gofiber\",\n                    \"product\": \"fiber\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.3.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/gofiber/fiber/security/advisories/GHSA-g5vh-55hw-rxm8","https://github.com/gofiber/fiber/pull/4245","https://github.com/gofiber/fiber/commit/c7ac00edd19f9669b1aebbec6e229658baaa059e","https://github.com/gofiber/fiber/releases/tag/v3.3.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-44332","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-44332","identifiers":["CVE-2026-44332"]},"retained":false,"historicalAffected":[]}],"coverage":[]}