Vulnerability in Red Hat Enterprise Linux 10

[ Description ]Official description

A privilege escalation flaw was found in FreeIPA. The uniqueness constraint enforced on Kerberos principal name attributes in the 389-ds directory server does not properly account for equivalent representations of the same principal name, allowing a user with sufficient LDAP write privileges to create a service principal that impersonates an existing privileged one. This can lead to unauthorized acquisition of Kerberos service tickets for sensitive services, potentially resulting in full domain compromise.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund23 Sep 2026WID-SEC-2026-3552

  Red Hat Enterprise Linux (FreeIPA): Multiple vulnerabilities Translated from German

  CVE-2026-11861CVE-2026-19550CVE-2026-79678+5 more CVEs

[ References ]References

• access.redhat.com/errata/RHSA-2026:70564vendor-advisoryx_refsource_REDHAT
• access.redhat.com/errata/RHSA-2026:72279vendor-advisoryx_refsource_REDHAT
• access.redhat.com/errata/RHSA-2026:82935vendor-advisoryx_refsource_REDHAT
• access.redhat.com/errata/RHSA-2026:83083vendor-advisoryx_refsource_REDHAT
• access.redhat.com/errata/RHSA-2026:83084vendor-advisoryx_refsource_REDHAT
• access.redhat.com/errata/RHSA-2026:83085vendor-advisoryx_refsource_REDHAT
• access.redhat.com/errata/RHSA-2026:83460vendor-advisoryx_refsource_REDHAT
• access.redhat.com/errata/RHSA-2026:83461vendor-advisoryx_refsource_REDHAT
• access.redhat.com/security/cve/CVE-2026-13097vdb-entryx_refsource_REDHAT
• bugzilla.redhat.com/show_bug.cgiissue-trackingx_refsource_REDHAT