CVE-2026-13097: Ipa: privilege escalation via krbcanonicalname manipulation due to realm-unaware uniqueness enforcement in freeipa ldap datastore

Severity: high (CVSS 8.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-20 · updated 2026-10-30
Weakness: CWE-706

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.

Affected products

FreeIPA ipa: 4.12.2 (and their updates)
Red Hat Enterprise Linux: 7.0, 8.0, 9.0, 10.0 (and their updates)
Red Hat Enterprise Linux 10: all versions — fixed in 0:4.13.4-1.el10_2
Red Hat Enterprise Linux 10.0 Extended Update Support: all versions — fixed in 0:4.12.2-15.el10_0.7
Red Hat Enterprise Linux 7 Extended Lifecycle Support: all versions — fixed in 0:4.6.8-5.el7_9.25
Red Hat Enterprise Linux 8: all versions — fixed in 8100020261007071200.143e9e98
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: all versions — fixed in 8060020261008134123.c1533a64
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On: all versions — fixed in 8060020261008134123.c1533a64
Red Hat Enterprise Linux 8.8 Telecommunications Update Service: all versions — fixed in 8080020261007080925.e581a9e4
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions: all versions — fixed in 8080020261007080925.e581a9e4
Red Hat Enterprise Linux 9: all versions — fixed in 0:4.13.4-1.el9_8
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions: all versions — fixed in 0:4.10.1-12.el9_2.7
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions: all versions — fixed in 0:4.11.0-15.el9_4.9
Red Hat Enterprise Linux 9.6 Extended Update Support: all versions — fixed in 0:4.12.2-14.el9_6.8

How to fix

Upgrade to a fixed version: Red Hat Enterprise Linux 10 0:4.13.4-1.el10_2; Red Hat Enterprise Linux 10.0 Extended Update Support 0:4.12.2-15.el10_0.7; Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:4.6.8-5.el7_9.25; Red Hat Enterprise Linux 8 8100020261007071200.143e9e98; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 8060020261008134123.c1533a64; Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 8060020261008134123.c1533a64; Red Hat Enterprise Linux 8.8 Telecommunications Update Service 8080020261007080925.e581a9e4; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 8080020261007080925.e581a9e4; Red Hat Enterprise Linux 9 0:4.13.4-1.el9_8; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:4.10.1-12.el9_2.7; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:4.11.0-15.el9_4.9; Red Hat Enterprise Linux 9.6 Extended Update Support 0:4.12.2-14.el9_6.8. Check the vendor advisory for mitigations.

References

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