CVE-2026-94382

Beszel before 0.19.0 Insecure Direct Object Reference via user-alerts

Published Sep 21, 2026 CVSS 4.0 · 2.3 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Beszel before 0.19.0 Insecure Direct Object Reference via user-alerts
First Time appeared Beszel
Beszel beszel
Weaknesses CWE-639
CPEs cpe:2.3:a:beszel:beszel:*:*:*:*:*:*:*:*
Vendors & Products Beszel
Beszel beszel
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 21, 2026, 2:12 PM
Reserved
Sep 21, 2026, 12:48 PM
Status
Deferred
Published
Sep 21, 2026, 2:17 PM
Modified
Sep 23, 2026, 5:17 PM