CVE-2026-13097
HighCVSS 8.7Exploitation Probability (EPSS)
Low risk32th percentile - higher than 32% of all known CVEs
Summary
A privilege escalation flaw was found in FreeIPA. The uniqueness constraint on Kerberos principal name attributes in the 389-ds directory server does not properly account for equivalent representations, allowing a user with LDAP write privileges to create a service principal that impersonates an existing privileged one. This can lead to unauthorized acquisition of Kerberos service tickets and potential full domain compromise.
Risk Assessment
The risk includes potential takeover of service accounts and privilege escalation across the domain, potentially leading to full infrastructure compromise.
Recommendation
Apply vendor patches immediately and audit existing service principals for unauthorized entries.
Other vulnerabilities in FreeIPA
See all- CVE-2026-73199Medium
The ipa-enrollment SLAPI plugin in FreeIPA has a null pointer dereference vulnerability. A remote authenticated client can send a malformed LDAP extended operation, omitting the request value for JOIN_OID, causing a server crash and denial of service.
- CVE-2017-11191High
FreeIPA 4.x with API version 2.213 allows remote authenticated users to bypass intended account-locking restrictions via an unlock action with an old session ID (for the same user account) that had been created for an earlier session.
- CVE-2015-5179High
FreeIPA might display user data improperly via vectors involving non-printable characters.
- CVE-2016-7030High
FreeIPA uses a default password policy that locks an account after 5 unsuccessful authentication attempts. This allows remote attackers to cause a denial of service by locking out the account in which system services run on.
- CVE-2016-5414High
FreeIPA version 4.4.0 allows remote attackers to request an arbitrary SAN name for services.
- CVE-2026-76578Critical
A flaw was found in FreeIPA. The self-managed OTP token ACI does not require authentication and does not restrict which attributes may be added alongside the token entry. An unauthenticated LDAP client can exploit this, combined with a related flaw in the underlying directory server's ACI evaluation (tracked separately), to create an arbitrary attacker-controlled Kerberos principal and have it added to the administrators group. This allows a remote, unauthenticated attacker to obtain genuine FreeIPA administrator-group membership and perform administrative operations against the directory and, on SID-enabled deployments, other IdM services.
- CVE-2026-11861Critical
A flaw was found in FreeIPA. When a trust relationship is configured with Active Directory, AD users can bypass authentication for FreeIPA services by impersonating a client name in the TGS due to missing PAC certificate verification. This could allow an authenticated AD user to escalate privileges within the FreeIPA domain.
- CVE-2025-4404Critical
A privilege escalation from host to domain vulnerability was found in FreeIPA. The lack of uniqueness validation for the `krbCanonicalName` attribute of the admin account allows creating a service with the same canonical name as the REALM admin. A successful attack lets the attacker obtain a Kerberos ticket with admin@REALM credentials.
- CVE-2015-5284Critical
In FreeIPA before version 4.2.2, the ipa-kra-install script places the CA agent certificate and private key in /etc/httpd/alias/kra-agent.pem, which is world readable.
- CVE-2026-18147High
A DOM-based Cross-Site Scripting (XSS) vulnerability exists in the FreeIPA/IdM Web UI password reset page. An unauthenticated remote attacker can exploit it by enticing a victim to click a crafted link and complete a password reset, allowing injection and execution of arbitrary JavaScript in the victim's session.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

