HIGH 7.5 NVD

CVE-2026-112320

The GSS-RPC transport layer in MIT Kerberos 5 (aka krb5) 1.4 and later does not release the previous authentication context when a client switches from an RPCSE

The GSS-RPC transport layer in MIT Kerberos 5 (aka krb5) 1.4 and later does not release the previous authentication context when a client switches from an RPCSEC_GSS or AUTH_GSSAPI flavor to a non-GSS flavor on the same TCP connection. This allows remote attackers to cause a denial of service (memory exhaustion in kadmind) by repeatedly establishing and abandoning GSS authentication contexts.

References

https://access.redhat.com/security/cve/CVE-2026-112320
https://bugzilla.redhat.com/show_bug.cgi?id=2478449

Published: 2026-11-09 · Source: NVD · Feed updated: 2026-11-10

This high severity vulnerability with a CVSS score of 7.5 was published on 2026-11-09 via NVD.

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