CVE-2026-46357: HAX CMS: Denial of Service using Malicious Import Request

May 19, 2026

The HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service.

References

github.com/advisories/GHSA-9r33-xhw8-4qqp
github.com/haxtheweb/issues/security/advisories/GHSA-9r33-xhw8-4qqp
nvd.nist.gov/vuln/detail/CVE-2026-46357

Code Behaviors & Features

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