What is CVE-2026-24029?

CVE-2026-24029 is a medium-severity vulnerability in Powerdns Dnsdist, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-03-31.

How severe is CVE-2026-24029?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Powerdns Dnsdist

CVE-2026-24029

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…

Vulnerability class: Broken Access Control

EPSS: 0.001 (4.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Powerdns Dnsdist — versions 1.9.0, 2.0.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security@open-xchange.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-24029?: CVE-2026-24029 is a medium-severity vulnerability in Powerdns Dnsdist, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-03-31.
How severe is CVE-2026-24029?: Medium severity. CVSS v3 base score is 6.5 out of 10.