CVE-2026-13097 Privilege escalation in Red Hat Enterprise Linux 10
Attackers with LDAP write access can escalate privileges by manipulating Kerberos principal names to impersonate privileged services, leading to domain compromise.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-13097?
CVE-2026-13097 is a high-severity vulnerability in Redhat Enterprise Linux, published on 20 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-706
Which versions are affected by CVE-2026-13097?
It affects 2 products.
Products include Freeipa Freeipa, Redhat Enterprise Linux.
How do I fix CVE-2026-13097?
Apply the vendor's patch.
Is CVE-2026-13097 being exploited?
There is no known exploitation of CVE-2026-13097 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux
- CVE-2015-5284 Information disclosure in n/a
- CVE-2026-11861 Freeipa: idm: ipa: freeipa: obtaining tgs with impersonating cname through trust relationships
- CVE-2024-2698 Freeipa: delegation rules allow a proxy service to impersonate any user to access another target service
- CVE-2012-5631 Information disclosure in ipa
- CVE-2017-11191 Security feature bypass in n/a
Sources
Also known as DEBIAN-CVE-2026-13097, GHSA-q4ph-46qc-4w6x, UBUNTU-CVE-2026-13097.