CVE-2026-24029

MediumCVSS 6.5/10Last modified Jul 25, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-863

Affected software

Vendor	Product	Versions
PowerDNS	DNSdist	>= 1.9.0, < 1.9.12; >= 2.0.0, < 2.0.3

References

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.htmlVendor Advisory

Timeline

Published: Mar 31, 2026
Last modified: Jul 25, 2026
NVD status: Analyzed

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