CVE-2026-24029 MEDIUM

CVE-2026-24029: DNS over HTTPS ACL bypass

Vendor Powerdns
Product DNSdist
Published March 31, 2026
Last update March 31, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 31, 2026 CVE published
March 31, 2026 Record updated