Krb5: mit krb5 kadmind unauthenticated memory leak dos via auth_gssapi_init error paths
Historical advisory recorded 9 Nov 2026 21:02:10 UTC. Read the latest advisory.
cve-program · CVE-2026-112321
PublishedThe 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.
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cve-program · CVE-2026-112321
PublishedKrb5: mit krb5 kadmind unauthenticated memory leak dos via auth_gssapi_init error paths
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.
- Source published
- 9 Nov 2026 19:08:10 UTC
- Source modified
- 9 Nov 2026 19:08:10 UTC
- Saved here
- 9 Nov 2026 21:02:10 UTC
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CVSS 3.1 · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H