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CVE-2026-44332

5.3 medium SSVC exploitation: none Analyzed

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.

Fix

Patch, vendor advisory and mitigation references on NVD 3

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.3 · gofiberNVD modified 2026-10-25 17:10

Affected (CPE criteria) 1

  • cpe:2.3:a:gofiber:fiber:*:*:*:*:*:go:*:*

References 4