PT-2026-47346 · Adguardteam · Adguardhome

Djnn + 1 · Published 2026-06-08 · Updated 2026-06-08 · CVE-2026-41448

NVD

CVSS v3.1

9.4

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

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.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-41448

Affected Products

Adguardhome

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-41448 · Security Note
• https://github.com/AdguardTeam/AdGuardHome/releases/tag/v0.107.77 · Note
• https://vulncheck.com/advisories/adguard-home-authentication-bypass-via-path-traversal-in-admin-token-cookie · Note