High severity7.5NVD Advisory· Published Nov 9, 2026· Updated Nov 9, 2026

CVE-2026-112321

Description

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

MIT Kerberos/krb5llm-fuzzy

Patches

Vulnerability mechanics

References

access.redhat.com/security/cve/CVE-2026-112321nvd
bugzilla.redhat.com/show_bug.cginvd

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cvss	0.488
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000