CVE-2026-0396

HTML injection in the web dashboard

CVSS 3.1 LOWEPSS 0.1%CWE-80

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected products

PowerDNS · DNSdist

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References

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