Home/CVE/An attacker might be able to inject HTML content into the internal web dashboard by sending crafted DNS queries to a DNS
CVE

CVE-2026-0396

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

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.

LOW · CVSS 3.1 EPSS 2e-05
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

2
powerdns dnsdist>= 1.9.0 and < 1.9.12
powerdns dnsdist>= 2.0.0 and < 2.0.3
▣

Scoring & Timeline

3.1
LOW · CVSS v3.1 · security@open-xchange.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD31 Mar 2026 · 12:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
suse-csafSUSE-SU-2026:1618-1
suse-csafopenSUSE-SU-2026:10473-1
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.htmlVendor Advisory
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