CRITICALVulnerability
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NVD CRITICAL: CVE-2026-82042 — UTMStack before 11.2.16 contains an authentication bypass vulnerability that all...

·Source: NIST NVD

Updated:

Executive 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 obtai

Analysis

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. CVSS Score: 9.8. Published: 2026-10-02T21:16:56.643.

Indicators of Compromise (1)

CVE (1)
CVE-2026-82042
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Oct 2, 2026. Verified by: NIST.

Related Threats

CRITICALVulnerability

NVD CRITICAL: CVE-2026-82041 — UTMStack before 11.2.16 contains a missing authorization vulnerability in UTMInc...

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CVE-2026-82041
NIST NVD
MEDIUMVulnerability

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MEDIUMVulnerability

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The Record