PT-2026-34691 · Julia · Kerberos Krb5 Jll

Published 2026-04-13 · Updated 2026-04-13

OSV

lib/kadm5/kadm rpc xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because xdr kadm5 principal ent rec does not validate the relationship between n key data and the key data array count.

Related Identifiers

JLSEC-2026-92

Affected Products

Kerberos Krb5 Jll

References · 7

• https://osv.dev/vulnerability/JLSEC-2026-92 · Vendor Advisory
• https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-final · Note
• https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-final · Note
• https://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cdd · Note
• https://lists.debian.org/debian-lts-announce/2023/10/msg00031.html · Note
• https://security.netapp.com/advisory/ntap-20230908-0004 · Note
• https://web.mit.edu/kerberos/www/advisories · Note