Vulnerability Description
Beszel before 0.19.0 contains an insecure direct object reference vulnerability in the POST and DELETE /api/beszel/user-alerts handlers that allows any authenticated user to create or delete alerts on systems they cannot access. Attackers can supply arbitrary system IDs in the request body to register alert rules and receive notifications disclosing target system names and metrics.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/henrygd/beszel
- https://github.com/henrygd/beszel/blob/v0.18.8/internal/alerts/alerts_api.go#L19
- https://github.com/henrygd/beszel/commit/6f92b9396dfbacaf71c20444d175af78e051740
- https://github.com/henrygd/beszel/releases/tag/v0.19.0
- https://github.com/henrygd/beszel/security/advisories/GHSA-759g-ch5m-2gch
- https://www.vulncheck.com/advisories/beszel-before-0.19.0-insecure-direct-object
- https://github.com/henrygd/beszel/security/advisories/GHSA-759g-ch5m-2gch
FAQ
What is CVE-2026-94382?
CVE-2026-94382 is a vulnerability with a CVSS score of 4.2 (MEDIUM). Beszel before 0.19.0 contains an insecure direct object reference vulnerability in the POST and DELETE /api/beszel/user-alerts handlers that allows any authenticated user to create or delete alerts on...
How severe is CVE-2026-94382?
CVE-2026-94382 has been rated MEDIUM with a CVSS base score of 4.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-94382?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.