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CVE-2026-11861

Опубликовано: 20 авг. 2026
Источник: nvd
CVSS3: 9.6
CVSS3: 8.1
EPSS Низкий

Описание

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.

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:freeipa:freeipa:*:*:*:*:*:*:*:*
Версия до 4.13.3 (исключая)
Конфигурация 2

Одно из

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

EPSS

Процентиль: 8%
0.00187
Низкий

9.6 Critical

CVSS3

8.1 High

CVSS3

Дефекты

CWE-266

Связанные уязвимости

CVSS3: 9.6
ubuntu
7 дней назад

(A flaw was found in FreeIPA. When a trust relationship is configured b ...)

CVSS3: 9.6
redhat
7 дней назад

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.

CVSS3: 9.6
debian
7 дней назад

A flaw was found in FreeIPA. When a trust relationship is configured b ...

CVSS3: 9.6
github
7 дней назад

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.

EPSS

Процентиль: 8%
0.00187
Низкий

9.6 Critical

CVSS3

8.1 High

CVSS3

Дефекты

CWE-266