CVE-2026-0396
4.3
MEDIUM
CVSS 3.1
EPSS 0.00%
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.
How to fix CVE-2026-0396
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/dnsdist—no fix listed
Is CVE-2026-0396 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |