CVE-2026-94382

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.

Overview

State: PUBLISHED
Assigner (CNA): VulnCheck
CVSS severity: LOW
CVSS score: 2.3 / 10
CVSS 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
Effective score: 2.3 / 10 LOW source: CNA overview
CWE(s): CWE-639
Reserved: 2026-09-21
Published: 2026-09-21 12:59 UTC
Last updated: 2026-09-21 14:12 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/94xxx/CVE-2026-94382.json

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-21 14:17:30 UTC
NVD last modified: 2026-09-21 15:17:39 UTC
NVD CVSS v3.1: 4.2 / 10 MEDIUM source: disclosure@vulncheck.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Exploitability subscore: 1.6 / 10
Impact subscore: 2.5 / 10
EPSS score: 0.0022 (probability of exploitation in next 30 days)
EPSS percentile: 12.26% vs all CVEs — higher = more likely to be exploited, as of 2026-09-22

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-83909
Assigner: VulnCheck
Published: Sep 21, 2026, 12:59:39 PM
Updated: Sep 21, 2026, 2:12:10 PM
EUVD base score (CVSS 4.0): 2.3 / 10
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
EUVD-reported EPSS: 0.2200
Vendors: henrygd
Products: beszel (0 <0.19.0)
Aliases: GHSA-x7pw-mf2h-rgr4

ENISA 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.

EUVD references (6)

Affected products (1)

Vendor	Product	Versions	Platforms
henrygd	beszel	`0` (affected), `0.19.0` (unaffected)	—

Vendor references (6)

References embedded in the original CVE record by the assigning CNA.

GitHub Security Advisory (GHSA-759g-ch5m-2gch) vendor-advisory
Patch Commit patch
Vulnerable UpsertUserAlerts handler at v0.18.8 technical-description
beszel v0.19.0 Release Notes release-notes
https://github.com/henrygd/beszel product
VulnCheck Advisory: Beszel before 0.19.0 Insecure Direct Object Reference via user-alerts third-party-advisory

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (7)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/henrygd/beszel disclosure@vulncheck.com
https://github.com/henrygd/beszel/blob/v0.18.8/internal/alerts/alerts_api.go#L19-L80 disclosure@vulncheck.com
https://github.com/henrygd/beszel/commit/6f92b9396dfbacaf71c20444d175af78e0517409 disclosure@vulncheck.com
https://github.com/henrygd/beszel/releases/tag/v0.19.0 disclosure@vulncheck.com
https://github.com/henrygd/beszel/security/advisories/GHSA-759g-ch5m-2gch disclosure@vulncheck.com
https://github.com/henrygd/beszel/security/advisories/GHSA-759g-ch5m-2gch 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.vulncheck.com/advisories/beszel-before-0.19.0-insecure-direct-object-reference-via-user-alerts disclosure@vulncheck.com

Remediations (10)

Oracle Releases 943 Security Patches Including Critical WebLogic Full ...

web:cybersecuritynews.com

Oracle has released 943 new security patches in its August 2026 Critical Security Patch Update, addressing flaws across its enterprise software portfolio. The release includes several critical Oracle WebLogic Server vulnerabilities that could allow an unauthenticated remote attacker to take complete ...

2026-09-23 15:41 UTC
GitHub - secureIT-project/CVEfixes: CVEfixes: Automated Collection of ...

web:github.com

CVEfixes: Automated Collection of Vulnerabilities and Their Fixes from Open-Source Software - secureIT-project/CVEfixes

2026-09-23 15:41 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-23 15:41 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Access Microsoft Security Response Center's guide to address vulnerabilities, manage security risks, and keep your systems protected with the latest updates.

2026-09-23 15:41 UTC
Cisco Advance Notification for Publication of September 16, 2026 ...

web:sec.cloudapps.cisco.com

On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...

2026-09-23 15:41 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-23 15:41 UTC
September 8, 2026—KB5122882 (OS Build 20348.5622)

web:support.microsoft.com

This cumulative update for Windows Server 2022 (KB5122882), includes the latest security fixes and improvements, along with non-security updates from last month's optional preview release. Visit the Windows release health dashboard for the latest status on this release. Announcements and messages This section provides key notifications related to this release, including announcements, change ...

2026-09-23 15:41 UTC
Microsoft Technical Security Notifications

web:www.microsoft.com

Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed. You can choose the type of updates for which you want to be notified: Major ...

2026-09-23 15:41 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-23 15:41 UTC
Oracle Critical Security Patch Update Advisory - June 2026

web:www.oracle.com

Additional CVEs addressed are: The patch for CVE - 2026 -34481 also addresses CVE - 2026 -34477, CVE - 2026 -34478, CVE - 2026 -34479, and CVE - 2026 -34480. Oracle Fusion Middleware Risk Matrix This Critical Security Patch Update contains 106 new security patches for Oracle Fusion Middleware. 53 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a ...

2026-09-23 15:41 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-94382.json.

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