PT-2026-52379 · Powerdns · Dnsdist

Haruki Oyama · Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-40011

NVD

CVSS v3.1

3.7

Low

Base vector

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

An attacker sending a large number of crafted DNS queries might be able to trigger a dynamic block being inserted with a value causing invalid output to be produced in the prometheus endpoint. The prometheus endpoint will then be rejected by the scraper until the dynamic block expires.

Fix

Related Identifiers

CVE-2026-40011

Affected Products

Dnsdist

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-40011 · Security Note
• https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-09.html · Note