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Beszel before 0.19.0 Insecure Direct Object Reference via user-alerts

CVSS 4.0 2.3 LOWCVSS 3.1 4.2 MEDIUMCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-94382

Published

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.

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Sources read 13 Nov 04:05 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current