CVE-2026-46391: HAX open-apis: Credential Theft via Server-Side Request Forgery (SSRF) in open-apis

May 19, 2026 (updated June 9, 2026)

Multiple functions conduct substring-only matching to validate hostnames to which basic authorization should be sent. An attacker can append the matched substrings to an attacker-controlled endpoint and capture authentication.

References

github.com/advisories/GHSA-4fg7-f244-3j49
github.com/haxtheweb/issues/security/advisories/GHSA-4fg7-f244-3j49
nvd.nist.gov/vuln/detail/CVE-2026-46391

Code Behaviors & Features

Detect and mitigate CVE-2026-46391 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →