PT-2026-121423
CVE-2026-114605
·
Published
2026-10-22
·
Updated
2026-10-22
Description by
CVSS 3.1
7.5
HighMetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions
dnspython versions prior to 2.9.0
Description
The
dns.name.from wire parser function fails to implement a hop limit when following DNS compression pointer chains. An attacker can send a specially crafted DNS wire-format message that triggers excessive pointer traversal during name decompression. This can lead to high CPU utilization, application degradation, or a denial of service for applications processing untrusted DNS messages.Recommendations
Update to version 2.9.0.
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