Debian/dnsdist: high 7.5
An attacker can create a large number of concurrent DoQ or DoH3 connections, causing unlimited memory allocation in DNSdist and leading to a denial of service. DOQ and DoH3 are disabled by default.
Action: Upgrade dnsdist to 1.9.14-0+deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.9.14-0+deb13u1 | - |
Fixed versions
| 1.9.14-0+deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-33254#Debian:13/dnsdist
- https://security-tracker.debian.org/tracker/CVE-2026-33254
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