Description

An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a use-after-free and potentially a crash resulting in denial of service.

INFO

Published Date :

2026-03-31T12:06:46.648Z

Last Modified :

2026-04-02T13:46:22.087Z

Source :

OX
AFFECTED PRODUCTS

The following products are affected by CVE-2026-27854 vulnerability.

Vendors Products
Powerdns
  • Dnsdist
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-27854.

URL Resource
https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Scope
Confidentiality Impact
Integrity Impact
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