CVE-2026-0396

HTML injection in the web dashboard

State: Published
Severity: 3.1 Low
Published: Mar 31, 2026
Updated: Mar 31, 2026
Reserved: Nov 28, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	3.1 Low	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N	OX

Weaknesses

CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Affected Products

Product	Versions
DNSdistPowerDNS	1.9.0 to before 1.9.12Affected 2.0.0 to before 2.0.3Affected

References

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html

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