CVE-2026-44332: Gofiber Fiber

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Gofiber Fiber: before 3.3.0 (fixed in 3.3.0)

Published 2026-07-08. Last modified 2026-07-15.