{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44332", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-05T19:52:59.146Z", "datePublished": "2026-07-08T19:32:15.113Z", "dateUpdated": "2026-07-08T19:32:15.113Z"}, "containers": {"cna": {"title": "Fiber: Username Enumeration via Timing Oracle in BasicAuth Default Authorizer", "problemTypes": [{"descriptions": [{"cweId": "CWE-203", "lang": "en", "description": "CWE-203: Observable Discrepancy", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/gofiber/fiber/security/advisories/GHSA-g5vh-55hw-rxm8", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/gofiber/fiber/security/advisories/GHSA-g5vh-55hw-rxm8"}, {"name": "https://github.com/gofiber/fiber/pull/4245", "tags": ["x_refsource_MISC"], "url": "https://github.com/gofiber/fiber/pull/4245"}, {"name": "https://github.com/gofiber/fiber/commit/c7ac00edd19f9669b1aebbec6e229658baaa059e", "tags": ["x_refsource_MISC"], "url": "https://github.com/gofiber/fiber/commit/c7ac00edd19f9669b1aebbec6e229658baaa059e"}, {"name": "https://github.com/gofiber/fiber/releases/tag/v3.3.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/gofiber/fiber/releases/tag/v3.3.0"}], "affected": [{"vendor": "gofiber", "product": "fiber", "versions": [{"version": "< 3.3.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-08T19:32:15.113Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-g5vh-55hw-rxm8", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.3.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "fiber", "source": "cna", "vendor": "gofiber"}, "product": "fiber", "vendor": "gofiber"}], "created": "2026-07-08T20:30:04.431501+00:00", "updated": "2026-07-08T20:30:04.431524+00:00", "vendors": ["gofiber", "gofiber$PRODUCT$fiber"]}