CVEvulnerability
CVE-2026-44332
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-08
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-203
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.
Affected configurations
• gofiber fiber (< 3.3.0)
Related
Weakness · CWE (1)
- CWE-203 Observable Discrepancy weakness
References
- https://github.com/gofiber/fiber/commit/c7ac00edd19f9669b1aebbec6e229658baaa059e Patch
- https://github.com/gofiber/fiber/pull/4245 Issue Tracking, Patch
- https://github.com/gofiber/fiber/releases/tag/v3.3.0 Release Notes
- https://github.com/gofiber/fiber/security/advisories/GHSA-g5vh-55hw-rxm8 Exploit, Vendor Advisory