CVE-2026-42002

MEDIUM

PowerDNS Authoritative 4.9.0-4.9.14 and 5.0.0-5.0.4 - Signal Handler Race Condition in GSS-TSIG

Title source: llm
STIX 2.1

Description

Concurrency and locking defects in GSS-TSIG

References (1)

Core 1

Scores

CVSS v3 5.9
EPSS 0.0002
EPSS Percentile 7.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-364
Status published
Products (3)
powerdns/authoritative 4.7.0 - 4.9.15
PowerDNS/Authoritative 4.9.0 - 4.9.15
PowerDNS/Authoritative 5.0.0 - 5.0.5
Published May 21, 2026
Tracked Since May 21, 2026