CVE-2026-11861Published

Freeipa: idm: ipa: freeipa: obtaining tgs with impersonating cname through trust relationships

Exact source revision recorded 26 Oct 2026 15:35:30 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-11861

Published

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.

Source published: 20 Aug 2026 10:39:08 UTC
Source modified: 26 Oct 2026 13:50:31 UTC
Observed here: 26 Oct 2026 15:35:30 UTC
Source terms: CVE Program Terms of Use

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CVSS 3.1 · 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N