Core Linux auth infra; widely used; could disrupt authentication across orgs.
CVE-2026-14476
SSSD AD GPO path traversal enables root writes outside GPO cache; may inject Kerberos config.
Is CVE-2026-14476 being exploited?
Not confirmed. CVE-2026-14476 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 0.67% probability of exploitation in the next 30 days.
How severe is CVE-2026-14476?
CVE-2026-14476 is rated High with a CVSS score of 8.0. 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-2026-14476?
Yes. A fix has been recorded for CVE-2026-14476. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-14476 affect?
CVE-2026-14476 affects SSSD, Red Hat Enterprise Linux, Linux AD GPO integration. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-14476?
Upgrade to patched SSSD/RHEL release when available.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Root writes outside GPO cache enable Kerberos config injection, risking authentication bypass on enforcing SELinux.
Patch when possible