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CVE-2026-94382— Beszel before 0.19.0 Insecure Direct Object Reference via user-alerts

Quick assessment

Affected
henrygd beszel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Beszel 在 0.19.0 版本之前存在一个不安全的直接对象引用（IDOR）漏洞，该漏洞位于 POST 和 DELETE /api/beszel/user-alerts 处理程序中。此漏洞允许任何经过身份验证的用户在无法访问的系统上创建或删除告警。攻击者可以在请求体中提供任意的系统 ID，从而注册告警规则并接收包含目标系统名称及指标信息的通知。

CVSS 4.2 · Medium EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token

Affected Version Matrix 2

VendorProduct Version RangeStatus
henrygd beszel < 0.19.0 affected
0.19.0 unaffected
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I. Basic Information for CVE-2026-94382

Vulnerability Information
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Vulnerability Title
Beszel before 0.19.0 Insecure Direct Object Reference via user-alerts
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
henrygd beszel 0 ~ 0.19.0 -

II. Public POCs for CVE-2026-94382

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III. Intelligence Information for CVE-2026-94382

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Patches & Fixes for CVE-2026-94382 (1)

Other References for CVE-2026-94382 (5)

IV. Related Vulnerabilities

Same product: beszel
Same vendor: henrygd
Same weakness: CWE-639

V. Comments for CVE-2026-94382

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