Keycloak is widely used; auth bypass via disabled IdP is a high-severity access-control weakness with potential widespread impact.
CVE-2026-3009
Keycloak IdP login bypass enables auth via a disabled IdP.
Is CVE-2026-3009 being exploited?
Not confirmed. CVE-2026-3009 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 0.33% probability of exploitation in the next 30 days.
How severe is CVE-2026-3009?
CVE-2026-3009 is rated High with a CVSS score of 8.1. 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-2026-3009?
Yes. A fix has been recorded for CVE-2026-3009. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-3009 affect?
CVE-2026-3009 affects Keycloak. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-3009?
Patch when available; audit IdP configurations and revoke pending login requests.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Bypass of admin-enforced IdP disablement; attacker can authenticate using a previously generated request to a disabled IdP, risking unauthorized access.
Patch when possible