Denial of Service Vulnerability in MIT Kerberos 5 by Remote Attackers
CVE-2026-112322

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
9 November 2026

What is CVE-2026-112322?

A vulnerability in the clean_client() function within the lib/rpc/svc_auth_gssapi.c file of MIT Kerberos 5 causes inefficient handling of client entries. When a large number of AUTH_GSSAPI client entries are accumulated, the function restarts its scan from the beginning after each removal, leading to excessive CPU utilization. This flaw allows remote attackers to exploit the system resource consumption, potentially leading to service outages.

References

https://access.redhat.com/security/cve/CVE-2026-112322
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2478445
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Found by AISLE in partnership with Red Hat.
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