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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.

PUBLISHED Reserved 2026-01-05 | Published 2026-01-07 | Updated 2026-01-07 | Assigner GitHub_M




CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-287: Improper Authentication

CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Product status

<= 2.0.0
affected

References

github.com/...anager/security/advisories/GHSA-r8w6-9xwg-6h73

github.com/...ommit/f188f0abf766cefe3f1b7b4fc6fe9dad3736174a

cve.org (CVE-2026-21854)

nvd.nist.gov (CVE-2026-21854)

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