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CVE-2026-44332

5.3 · MEDIUM

Fiber is an Express inspired web framework written in Go.

Published Jul 8, 2026CWE-203EPSS 0.52%

Overview

CVE-2026-44332 is a medium-severity vulnerability. It was published on July 8, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/gofiber/fiber/commit/c7ac00edd19f9669b1aebbec6e229658baaa059eGitHubgithub.com/gofiber/fiber/pull/4245GitHubgithub.com/gofiber/fiber/releases/tag/v3.3.0GitHubgithub.com/gofiber/fiber/security/advisories/GHSA-g5vh-55hw-rxm8

How CyberStrike helps

Frequently asked questions

What is CVE-2026-44332?

CVE-2026-44332 is a medium-severity vulnerability. It was published on July 8, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-44332?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-44332?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-44332?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-44332 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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