ID:12686 - Exploit for Improper Authentication in AdGuard Home - CVE-2026-32136

 
Main Vulnerability Database Exploits ID:12686 - Exploit for Improper Authentication in AdGuard Home - CVE-2026-32136

ID:12686 - Exploit for Improper Authentication in AdGuard Home - CVE-2026-32136

Published: April 30, 2026


Vulnerability identifier: #VU127584
Vulnerability risk: High
CVE-ID: CVE-2026-32136
CWE-ID: CWE-287
Exploitation vector: Remote access
Vulnerable software:
AdGuard Home

Link to public exploit:


Vulnerability description

The vulnerability allows a remote attacker to bypass authentication and gain administrative access.

The vulnerability exists due to improper authentication in internal/home/web.go when processing an HTTP/1.1 request that upgrades to HTTP/2 cleartext (h2c). A remote attacker can send a specially crafted upgrade request to bypass authentication and gain administrative access.

HTTP/2 over TLS is not affected.


Remediation

Install security update from vendor's website.