PatchTheCVEsingle sign-on vulnerabilities and fixes
Recent CVEs affecting single sign-on, with upgrade or downgrade steps. 2 tracked.
Also searched as: single sign on, singlesign-on.
single sign-on has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-08-05. Highest priority: CVE-2026-16102 (score 43/100).
- CVE-2026-16102 HIGH 8.1 UPGRADE DOWNGRADE A flaw was found in the Dynamic Client Registration (DCR) component of Keycloak, an identity and access manage
- CVE-2026-15573 HIGH 8.1 UPGRADE DOWNGRADE A flaw was found in Keycloak's Authorization Services
FAQ
How do I fix single sign-on vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is single sign-on being exploited right now?
None of the tracked single sign-on CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which single sign-on CVE should I patch first?
CVE-2026-16102 currently ranks highest (43/100): A flaw was found in the Dynamic Client Registration (DCR) component of Keycloak, an identity and access manage.