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CVE-2026-0396 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CNA: [email protected]CVSS-B:3.1 LOWVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-80	Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)	CISA-ADP

Affected Products

Product	Versions
powerdns dnsdist	>= 1.9.0, < 1.9.12 >= 2.0.0, < 2.0.3
CPE cpe:2.3:a:powerdns:dnsdist:::::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jul 25, 2026	CVE Translated	[email protected]
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 13, 2026	Initial Analysis	[email protected]
Mar 31, 2026	CVE Modified	CISA-ADP
Mar 31, 2026	New CVE Received	[email protected]