Keycloak 11.0 End of Life
Support dates, vulnerabilities published since end of life, and upgrade guidance — rebuilt from live data.
Keycloak 11.0 reached end of life on 16 Dec 2020. It no longer receives security fixes.
Support timeline
Official dates from the Keycloak release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 22 Jul 2020 | — |
| End of life | 16 Dec 2020 | 5.6 years ago |
| Latest release | 11.0.3 · 5 Nov 2020 | final |
The cost of staying: CVEs since end of life
54 Keycloak vulnerabilities have been published since 16 Dec 2020. All were fixed in supported branches — 11.0 received none of them. Source: NVD.
Keycloak CVEs published since 11.0's EOL, by year
4 of the 54 are rated critical · data refreshed 2026-08-09
Published 7 Jul 2023 · rated critical — fixed in supported branches only, never in 11.0. Details
Published 8 Jul 2022 · rated critical — fixed in supported branches only, never in 11.0. Details
Published 28 May 2021 · rated critical — fixed in supported branches only, never in 11.0. Details
Where to go from 11.0
Recommended target: Keycloak 26.7.
The newest actively supported branch is Keycloak 26.7 (latest release 26.7.1).
Frequently asked questions
Is Keycloak 11.0 still safe to use?
No. Keycloak 11.0 stopped receiving security fixes on 16 Dec 2020. Since then, 54 Keycloak vulnerabilities have been published and fixed in supported branches — Keycloak 11.0 received none of those fixes.
Can I still download Keycloak 11.0?
Yes — the final release (11.0.3) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Keycloak 11.0 to?
Upgrade to Keycloak 26.7, the newest actively supported branch.