CVE-2026-46391

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

State: Published
Severity: 8.7 High
Published: Jun 5, 2026
Updated: Jun 8, 2026
Reserved: May 13, 2026

Description

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Starting in version 9.0.1 and prior to version 26.0.0 of @haxtheweb/open-apis, 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. Version 26.0.0 fixes the issue.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N	GitHub_M

Weaknesses

CWE-183 Permissive List of Allowed Inputs
CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
@haxtheweb/open-apishaxtheweb	>= 9.0.1, < 26.0.0Affected

References

https://github.com/haxtheweb/issues/security/advisories/GHSA-4fg7-f244-3j49

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