CVE-2026-41448

CriticalCVSS 9.4/10Last modified Jul 23, 2026

Description

AdGuard Home, when started with the --glinet flag, contains an authentication bypass vulnerability that allows unauthenticated attackers to gain full admin access by supplying a path traversal sequence in the Admin-Token cookie, exploiting unsanitized string concatenation in the token file path construction within the authglinet middleware. Attackers can craft a request with a traversal payload in the Admin-Token header to redirect file reads to arbitrary paths.

Metrics

CVSS 3.1 9.4/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Weakness enumeration

CWE-22

Affected software

No affected versions have been published.

Timeline

Published: Jun 8, 2026
Last modified: Jul 23, 2026
NVD status: Deferred

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