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CVE-2026-11861

high

A flaw was found in FreeIPA.

Vendor / product: Freeipa — freeipa

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.

CVSS
8.1
8.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-08-20 11:16
Modified: 2026-10-30 19:18
NVD status: Modified
Last synced 17 hours ago
Verified against the source API 2026-10-30 19:20 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

freeipa / freeipa <4.13.3
redhat / enterprise_linux 7.0, 8.0, 9.0, 10.0

Weakness classification (CWE)

CWE-266

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://access.redhat.com/security/cve/CVE-2026-11861
Vendor advisory: https://bugzilla.redhat.com/show_bug.cgi?id=2487472

References

Data sources

NVD CVE API 2.0 — fetched 2026-10-30 19:20 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores

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