PT-2026-139870
CVE-2026-123589
·
Published
2026-11-08
·
Updated
2026-11-08
Description by
CVSS 4.0
6.9
MediumMetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions
hickory-server (hickory-dns) versions prior to 0.26.2
Description
The DNS-over-QUIC (DoQ) server fails to apply timeouts when reading request messages from a QUIC stream, which allows configured timeouts to be bypassed. A remote unauthenticated client can establish a connection and a request stream and maintain them indefinitely, leading to resource exhaustion and a denial of service.
Recommendations
Update hickory-server (hickory-dns) to version 0.26.2 or later.
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