CVE-2026-82042 (GCVE-0-2026-82042)

Vulnerability from cvelistv5 – Published: 2026-10-02 20:15 – Updated: 2026-10-02 20:15 X_Open Source
VLAI
Title
UTMStack < 11.2.16 Authentication Bypass via InternalApiKeyFilter
Summary
UTMStack before 11.2.16 contains an authentication bypass vulnerability that allows remote attackers to gain full administrative API access by presenting a valid Utm-Internal-Key header matching the INTERNAL_KEY environment variable value, which the InternalApiKeyFilter accepts for any endpoint without path restriction, constant-time comparison, rate limiting, or audit logging. Attackers who obtain the key value can authenticate without a user account or JWT to create accounts, manage users, exfiltrate data, and modify security rules.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Vendor Product Version CPE status
UTMStack UTMStack Affected: 0 , < 11.2.16 (semver)
guessed Create a notification for this product.
Date Public
2026-08-31 00:00
Credits
Adam Nurudini (QwesiRED) VulnCheck
Show details on NVD website
To clipboard 

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}



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