CVE-2026-21854

CRITICAL
2026-01-07 [email protected]
9.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
Patch Released
Feb 03, 2026 - 16:21 nvd
Patch available
CVE Published
Jan 07, 2026 - 19:15 nvd
CRITICAL 9.8

Tags

Authentication Bypass Tarkov Data Manager

Description

The Tarkov Data Manager is a tool to manage the Tarkov item data. Prior to 02 January 2025, an authentication bypass vulnerability in the login endpoint allows any unauthenticated user to gain full admin access to the Tarkov Data Manager admin panel by exploiting a JavaScript prototype property access vulnerability, combined with loose equality type coercion. A series of fix commits on 02 January 2025 fixed this and other vulnerabilities.

Analysis

Tarkov Data Manager's login endpoint can be bypassed using JavaScript prototype property access combined with loose equality type coercion. Any unauthenticated user can gain full admin access. …

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Remediation

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Audit authentication configurations and rotate any potentially compromised credentials.

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Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: +0.6
CVSS: +49
POC: 0

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CVE-2026-21854 vulnerability details – vuln.today
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