ID:12686 - Exploit for Improper Authentication in AdGuard Home - CVE-2026-32136
Published: April 30, 2026
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.