Core identity service weakness in FreeIPA/389-ds enabling Kerberos impersonation and potential full domain compromise; impacts authentication infrastructure used across organizations.
CVE-2026-13097
FreeIPA/389-ds flaw allows Kerberos principal impersonation leading to domain compromise.
Is CVE-2026-13097 being exploited?
Not confirmed. CVE-2026-13097 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.27% probability of exploitation in the next 30 days.
How severe is CVE-2026-13097?
CVE-2026-13097 is rated Critical. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-13097?
Yes. A fix has been recorded for CVE-2026-13097. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-13097 affect?
CVE-2026-13097 affects FreeIPA, 389-ds (389 Directory Server), Kerberos service principals / KDC, IPA servers. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-13097?
Apply vendor patch when released, restrict LDAP write rights, audit principals, rotate Kerberos keys
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
An attacker with LDAP write rights can create a service principal that impersonates privileged principals, obtain Kerberos service tickets, and achieve full domain compromise.
Immediate action required