PT-2026-52384 · Dnsdist · Dnsdist

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CVE-2026-42004

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Published

2026-06-25

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Updated

2026-08-05

CVSS v3.1

3.7

Low

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Name of the Vulnerable Software and Affected Versions DNSdist (affected versions not specified)
Description An attacker can send a crafted EDNS OPT record that bypasses DNSdist filtering rules. When EDNS Client Subnet is inserted, the record is rewritten as a valid OPT record, allowing the backend to receive EDNS options that were intended to be filtered.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Weakness Enumeration

Related Identifiers

CVE-2026-42004
OPENSUSE-SU-2026:11411-1
OPENSUSE-SU-2026:21533-1
SUSE-SU-2026:23123-1
SUSE-SU-2026:23146-1

Affected Products

Dnsdist