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CVE-2026-46357 haxtheweb CVE debrief

CVE-2026-46357 is a vulnerability in the HAX CMS NodeJS application. Prior to version 26.0.0, an authenticated attacker can crash the application by sending a specially crafted site creation request to the createSite endpoint. This can be done with a single request, taking the entire application offline and requiring a manual server restart to restore service. The issue is fixed in version 26.0.0.

Vendor
haxtheweb
Product
haxcms-nodejs
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-07-23
Advisory published
2026-06-05
Advisory updated
2026-07-23

Who should care

Users of HAX CMS NodeJS application, particularly those using versions prior to 26.0.0, should be aware of this vulnerability and take steps to update to the latest version.

Technical summary

The HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. This is due to a vulnerability that can be exploited with a single request, resulting in a denial of service. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update to version 26.0.0 or later to fix the issue.
  • Restrict access to the createSite endpoint to prevent unauthorized requests.

Evidence notes

The vulnerability is described in the CVE record [cve-org] and detailed in the NVD [nvd]. A security advisory is also available [ref-4].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46357 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46357

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-46357 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46357

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.