CVE-2026-11861 Common Vulnerabilities and Exposures

Upstream information

CVE-2026-11861 at MITRE

Description

A flaw was found in FreeIPA. When a trust relationship is configured between FreeIPA and Active Directory, Active Directory users can bypass authentication for FreeIPA services, including the portal, SMB server, and LDAP directory. This is possible by impersonating a client name in the Ticket Granting Service (TGS) due to FreeIPA services not verifying Privilege Attribute Certificate (PAC) certificates. This vulnerability could allow an authenticated Active Directory user to escalate their privileges within the FreeIPA domain.

Other Security Trackers

EUVD-2026-63245

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having critical severity.

CVSS v3 Scores
CVSS detail	CNA (Red Hat)	National Vulnerability Database
Base Score	9.6	8.1
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector	Network	Network
Attack Complexity	Low	Low
Privileges Required	Low	Low
User Interaction	None	None
Scope	Changed	Unchanged
Confidentiality Impact	High	High
Integrity Impact	High	High
Availability Impact	None	None
CVSSv3 Version	3.1	3.1

SUSE Bugzilla entry: 1275856 [NEW]

SUSE Security Advisories:

RHSA-2026:70564, published Mon Sep 28 15:07:47 UTC 2026
RHSA-2026:72279, published Tue Sep 29 15:07:42 UTC 2026

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Liberty Linux 10	`ipa-client >= 4.13.4-1.el10_2` `ipa-client-common >= 4.13.4-1.el10_2` `ipa-client-encrypted-dns >= 4.13.4-1.el10_2` `ipa-client-epn >= 4.13.4-1.el10_2` `ipa-client-samba >= 4.13.4-1.el10_2` `ipa-common >= 4.13.4-1.el10_2` `ipa-selinux >= 4.13.4-1.el10_2` `ipa-selinux-luna >= 4.13.4-1.el10_2` `ipa-selinux-nfast >= 4.13.4-1.el10_2` `ipa-server >= 4.13.4-1.el10_2` `ipa-server-common >= 4.13.4-1.el10_2` `ipa-server-dns >= 4.13.4-1.el10_2` `ipa-server-encrypted-dns >= 4.13.4-1.el10_2` `ipa-server-trust-ad >= 4.13.4-1.el10_2` `python3-ipaclient >= 4.13.4-1.el10_2` `python3-ipalib >= 4.13.4-1.el10_2` `python3-ipaserver >= 4.13.4-1.el10_2` `python3-ipatests >= 4.13.4-1.el10_2`	Patchnames: RHSA-2026:72279 (x86_64)
SUSE Liberty Linux 9.6 EMS	`ipa-client >= 4.12.2-14.el9_6.8` `ipa-client-common >= 4.12.2-14.el9_6.8` `ipa-client-encrypted-dns >= 4.12.2-14.el9_6.8` `ipa-client-epn >= 4.12.2-14.el9_6.8` `ipa-client-samba >= 4.12.2-14.el9_6.8` `ipa-common >= 4.12.2-14.el9_6.8` `ipa-selinux >= 4.12.2-14.el9_6.8` `ipa-selinux-luna >= 4.12.2-14.el9_6.8` `ipa-selinux-nfast >= 4.12.2-14.el9_6.8` `ipa-server >= 4.12.2-14.el9_6.8` `ipa-server-common >= 4.12.2-14.el9_6.8` `ipa-server-dns >= 4.12.2-14.el9_6.8` `ipa-server-encrypted-dns >= 4.12.2-14.el9_6.8` `ipa-server-trust-ad >= 4.12.2-14.el9_6.8` `python3-ipaclient >= 4.12.2-14.el9_6.8` `python3-ipalib >= 4.12.2-14.el9_6.8` `python3-ipaserver >= 4.12.2-14.el9_6.8` `python3-ipatests >= 4.12.2-14.el9_6.8`	Patchnames: RHSA-2026:83083 (x86_64)
SUSE Liberty Linux 9	`ipa-client >= 4.13.4-1.el9_8` `ipa-client-common >= 4.13.4-1.el9_8` `ipa-client-encrypted-dns >= 4.13.4-1.el9_8` `ipa-client-epn >= 4.13.4-1.el9_8` `ipa-client-samba >= 4.13.4-1.el9_8` `ipa-common >= 4.13.4-1.el9_8` `ipa-selinux >= 4.13.4-1.el9_8` `ipa-selinux-luna >= 4.13.4-1.el9_8` `ipa-selinux-nfast >= 4.13.4-1.el9_8` `ipa-server >= 4.13.4-1.el9_8` `ipa-server-common >= 4.13.4-1.el9_8` `ipa-server-dns >= 4.13.4-1.el9_8` `ipa-server-encrypted-dns >= 4.13.4-1.el9_8` `ipa-server-trust-ad >= 4.13.4-1.el9_8` `python3-ipaclient >= 4.13.4-1.el9_8` `python3-ipalib >= 4.13.4-1.el9_8` `python3-ipaserver >= 4.13.4-1.el9_8` `python3-ipatests >= 4.13.4-1.el9_8`	Patchnames: RHSA-2026:70564 (x86_64)

SUSE Timeline for this CVE

CVE page created: Thu Aug 20 21:01:40 2026
CVE page last modified: Sat Oct 31 13:35:16 2026