CVE-2026-46391
Last modified
CVE-2026-46391 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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. EPSS estimates a 0.46% chance of exploitation in the next 30 days.
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.
Metrics
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-46391?
How severe is CVE-2026-46391?
How do I fix CVE-2026-46391?
How Strix Helps
- One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-46385iskorotkov/avro is a fast Go Avro codec. Prior to 2.33.0, th…8.7
- CVE-2026-46386OpenProject is open-source, web-based project management sof…9.9
- CVE-2026-46388osquery is a SQL powered operating system instrumentation, m…4.4
- CVE-2026-46389UDS Identity Config builds the Keycloak configuration image …9.8
- CVE-2026-4639Vitals ESP developed by Galaxy Software Services has a Incor…8.8
- CVE-2026-46390HAX CMS helps manage microsite universe with PHP or NodeJs b…6.9
- CVE-2026-46392HAX CMS helps manage microsite universe with PHP or NodeJs b…8.7
- CVE-2026-46393HAX CMS helps manage microsite universe with PHP or NodeJs b…7.1
- CVE-2026-46394HAX CMS helps manage microsite universe with PHP or NodeJs b…7.7
- CVE-2026-46395HAX CMS helps manage microsite universe with PHP or NodeJs b…9.3
- CVE-2026-46396HAX CMS helps manage microsite universe with PHP or NodeJs b…9.3
- CVE-2026-46397HAX CMS helps manage microsite universe with PHP or NodeJs b…6.5
Are you affected by CVE-2026-46391?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST