CVE-2026-3119

NameCVE-2026-3119
DescriptionUnder certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature (TSIG) from a key declared in the `named` configuration. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bind9 (PTS)bullseye1:9.16.50-1~deb11u2fixed
bullseye (security)1:9.16.50-1~deb11u4fixed
bookworm1:9.18.41-1~deb12u1fixed
bookworm (security)1:9.18.47-1~deb12u1fixed
trixie1:9.20.18-1~deb13u1vulnerable
trixie (security)1:9.20.21-1~deb13u1fixed
forky1:9.20.20-1vulnerable
sid1:9.20.21-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bind9sourcebullseye(not affected)
bind9sourcebookworm(not affected)
bind9sourcetrixie1:9.20.21-1~deb13u1
bind9source(unstable)1:9.20.21-1

Notes

[bookworm] - bind9 <not-affected> (Vulnerable code not present)
[bullseye] - bind9 <not-affected> (Vulnerable code not present)
https://kb.isc.org/docs/cve-2026-3119
https://gitlab.isc.org/isc-projects/bind9/-/commit/527ec954563641c9922a4dd126096eef3e59f527 (v9.20.21)
https://gitlab.isc.org/isc-projects/bind9/-/commit/163db61ebdae99894b83dbbb9bcea0485a3bc7ee (v9.20.21)

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