This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-40208 →

DEBIAN-CVE-2026-40208

An attacker might be able to delay the processing of DoH3 queries by sending DoH3 GET queries with an invalid DATA frame.

Original description

The description as published by the source.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Debian:12 dnsdist

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 dnsdist

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.15-0+deb13u1"}]}]

Debian:14 dnsdist

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-1"}]}]