CVE-2026-0396 details an HTML injection vulnerability affecting DNSdist instances, allowing an attacker to embed malicious content into the internal web dashboard. This is possible when domain-based dynamic rules, specifically DynBlockRulesGroup:setSuffixMatchRule or DynBlockRulesGroup:setSuffixMatchRuleFFI, are enabled and crafted DNS queries are sent. With a CVSS 3.1 score of 3.1 (LOW), the vulnerability has high attack complexity and requires user interaction, leading to a low integrity impact with no confidentiality or availability concerns. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed on the KEV catalog or Hot List.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.9.0, < 1.9.12CPE matchmatch criteria | cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:* | ||
>= 2.0.0, < 2.0.3CPE matchmatch criteria | cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.