CVE-2026-0396

dnsdist: An attacker might be able to inject HTML content into the internal web dashboard by sending crafted DNS queries to a...

CVE-2026-0396 is fixed in dnsdist on 1 platform, first by DEBIAN-CVE-2026-0396, released March 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
4.3
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0014
3rd percentile

An attacker might be able to inject HTML content into the internal web dashboard by sending crafted DNS queries to a DNSdist instance where domain-based dynamic rules have been enabled via either DynBlockRulesGroup:setSuffixMatchRule or DynBlockRulesGroup:setSuffixMatchRuleFFI.

Where it's fixed

ProductFixed inFixReleased
Linux
dnsdist · Debian 13.5 (trixie) 1.9.14-0+deb13u1 DEBIAN-CVE-2026-0396 Mar 31, 2026
dnsdist · Debian 14 2.0.3-1 DEBIAN-CVE-2026-0396 Mar 31, 2026
dnsdist · opensuse-leap 16.0 1.9.13-160000.1.1 OPENSUSE-SU-2026:21015-1 Jun 22, 2026
dnsdist · sles 15.7 1.9.12-150700.3.9.1 SUSE-SU-2026:1618-1 Apr 24, 2026
dnsdist · sles 16.0 1.9.13-160000.1.1 SUSE-SU-2026:22319-1 Jun 22, 2026

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