CVE-2026-82042 — UTMStack < 11.2.16 Authentication Bypass via InternalApiKeyFilter
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-Ke…
Published: 2026-10-02 · CVSS: 9.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7