Cloudanix VulnDB

CVE-2026-32136

Critical · 9.8

CVSS

9.8

EPSS

0.8%

Published

Mar 11, 2026

CISA due date

—

The record

AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.73, an unauthenticated remote attacker can bypass all authentication in AdGuardHome by sending an HTTP/1.1 request that requests an upgrade to HTTP/2 cleartext (h2c). Once the upgrade is accepted, the resulting HTTP/2 connection is handled by the inner mux, which has no authentication middleware attached. All subsequent HTTP/2 requests on that connection are processed as fully authenticated, regardless of whether any credentials were provided. This vulnerability is fixed in 0.107.73.

Affected packages

Ecosystem Package Introduced Fixed
openSUSE:Leap 15.6 govulncheck-vulndb 0 0.0.20260317T205859-150000.1.152.1

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