Vulnerability DatabaseCVE-2026-112322
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CVE-2026-112322
Published:November 09, 2026
Updated:November 10, 2026
clean_client() in lib/rpc/svc_auth_gssapi.c in MIT Kerberos 5 (aka krb5) restarts its scan from the head of the client list after each removal, resulting in quadratic CPU cost. Remote attackers can cause a denial of service (CPU consumption in kadmind) by accumulating a large number of AUTH_GSSAPI client entries.
Affected Packages
https://github.com/krb5/krb5.git (GITHUB):
Affected version(s) >=krb5-1.0-beta7 <krb5-1.22.3-final
Fix Suggestion:
Update to version krb5-1.22.3-final
Related Resources (3)
https://bugzilla.redhat.com/show_bug.cgi?id=2478445
https://access.redhat.com/security/cve/CVE-2026-112322
https://nvd.nist.gov/vuln/detail/CVE-2026-112322
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Allocation of Resources Without Limits or Throttling
CWE-770