CVE-2026-16102
Keycloak DCR flaw lets authenticated users forge admin roles in tokens.
Is CVE-2026-16102 being exploited?
Not confirmed. CVE-2026-16102 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 0.32% probability of exploitation in the next 30 days.
How severe is CVE-2026-16102?
CVE-2026-16102 is rated High. 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-2026-16102?
Yes. A fix has been recorded for CVE-2026-16102. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-16102 affect?
CVE-2026-16102 affects Keycloak (Dynamic Client Registration component). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-16102?
Apply vendor patch when available; restrict/disable DCR, audit tokens, rotate client secrets.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Forge admin roles in access tokens, takeover clients, steal client secrets, and gain full realm administrative control via DCR claim write.
Immediate action required