CVE-2026-112321

krb5: MIT krb5 kadmind unauthenticated memory leak DoS via AUTH_GSSAPI_INIT error paths

krb5

The AUTH_GSSAPI handler in lib/rpc/svc_auth_gssapi.c in MIT Kerberos 5 (aka krb5) does not free decoded arguments on certain error paths, which allows remote attackers to cause a denial of service (memory exhaustion in kadmind) via crafted AUTH_GSSAPI_INIT requests that trigger authentication failures.

9. Nov 2026

Ausgewertete Quellen

• Red Hat
  https://access.redhat.com/errata/RHSA-2026:99624
• Red Hat
  https://access.redhat.com/errata/RHSA-2026:99625
• Red Hat
  https://access.redhat.com/security/cve/CVE-2026-112321
• Red Hat
  https://bugzilla.redhat.com/show_bug.cgi?id=2478448
• NVD
  CVE-2026-112321