SSRF in Haxtheweb @Haxtheweb/open-Apis
CVE-2026-46391
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.
EPSS: 0.005 (38.1th percentile) — read the EPSS interpretation.
Affected products
- Haxtheweb @Haxtheweb/open-apis — versions >= 9.0.1, < 26.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-46391?
- CVE-2026-46391 is a vulnerability in Haxtheweb @Haxtheweb/open-Apis, classified under CWE-183. Published 2026-06-05.
- Is CVE-2026-46391 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.