CVE-2026-112316

NameCVE-2026-112316
Descriptionxdr_krb5_tl_data() in lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) does not free partially decoded data on failure, which allows remote authenticated users to cause a denial of service (memory leak in kadmind) via crafted RPC requests that trigger a decode failure.
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)
Debian Bugs1153598

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
krb5 (PTS)bookworm, bookworm (security)1.20.1-2+deb12u5vulnerable
trixie (security), trixie1.21.3-5+deb13u1vulnerable
forky, sid1.22.1-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
krb5source(unstable)(unfixed)1153598

Notes

https://mailman.mit.edu/pipermail/kerberos-announce/2026q4/000212.html
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