henrygd Beszel up to 0.18.x Alerts /api/beszel/user-alerts system_id resource injection

Summaryinfo

A vulnerability was found in henrygd Beszel up to 0.18.x. It has been declared as critical. The affected element is an unknown function of the file /api/beszel/user-alerts of the component Alerts Handler. Executing a manipulation of the argument system_id can lead to resource injection. This vulnerability is handled as CVE-2026-94382. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in henrygd Beszel up to 0.18.x. This vulnerability affects some unknown processing of the file /api/beszel/user-alerts of the component Alerts Handler. The manipulation of the argument system_id with an unknown input leads to a resource injection vulnerability. The CWE definition for the vulnerability is CWE-99. The product receives input from an upstream component, but it does not restrict or incorrectly restricts the input before it is used as an identifier for a resource that may be outside the intended sphere of control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-94382 since 09/21/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit.

Upgrading to version 0.19.0 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• henrygd

Name

• Beszel

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18

Website

• Product: https://github.com/henrygd/beszel/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion