This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-76163 →
UBUNTU-CVE-2026-76163
If BIND is loaded with a "`named.conf`" file that contains no global "`options`" block, an attacker can send a query of QTYPE TKEY which may cause an...
Original description
The description as published by the source.
If BIND is loaded with a "named.conf" file that contains no global "options" block, an attacker can send a query of QTYPE TKEY which may cause an assertion failure and subsequent unexpected program exit. This issue affects BIND 9 versions 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, and 9.20.9-S1 through 9.20.27-S1.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Ubuntu:18.04:LTS
isc-dhcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS
bind9-libs
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
bind9-libs
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
isc-dhcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10
bind9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
bind9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.20.24-1ubuntu0.4"}]}]
Ubuntu:26.04:LTS
isc-dhcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory ubuntu.com
- report ubuntu.com
- report cve.org
- report kb.isc.org