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Critical 9.8Published Jan 7, 2026

CVE-2026-21854Tarkov Data Manager Authentication Bypass vulnerability

Updated under an hour ago ()

Does this affect you?

It affects the-hideout tarkov-data-manager and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-287, CWE-843, CWE-1321
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Analyzed
Record last updated
Jan 7, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
the-hideout tarkov-data-manager
hideout:tarkov_data_manager (from the name)
through 2.0.0
CNA record
tarkov tarkov_data_manager
tarkov:tarkov_data_manager
before 2025-01-02
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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