CVE-2026-24029 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

PowerDNS

DNSdist

unaffected

Version	Status	Constraints
`1.9.0`	affected	< 1.9.12
`2.0.0`	affected	< 2.0.3

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html

History

Tue, 31 Mar 2026 12:15:00 +0000

Type	Values Removed	Values Added
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.
Title		DNS over HTTPS ACL bypass
References		https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: OX

Published: 2026-03-31T11:59:12.903Z

Updated: 2026-03-31T13:15:37.448Z

Reserved: 2026-01-20T14:56:25.872Z

Link: CVE-2026-24029

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-03-31T12:16:27.633

Modified: 2026-03-31T12:16:27.633

Link: CVE-2026-24029

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

No weakness.

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