CVE-2026-24029

Medium

Description

When the early_acl_drop (earlyACLDrop in Lua) option is disabled (default is enabled) on a DNS over HTTPs frontend using the nghttp2 provider, the ACL check is skipped, allowing all clients to send DoH queries regardless of the configured ACL.

SeverityMedium
CVSS6.5
Exploit probability—
ProductPowerdns Dnsdist
PublishedMar 31, 2026
First seenMar 31, 2026

How to fix

Update
  • powerdns dnsdist1.9.12, 2.0.3 or later

Affected products

ProductAffected versionsFixed in
powerdns dnsdist1.9.0 ≤ v < 1.9.12, 2.0.0 ≤ v < 2.0.31.9.12, 2.0.3

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.