Keycloak 26.4 End of Life
Support dates, vulnerabilities published since end of life, and upgrade guidance — rebuilt from live data.
Keycloak 26.4 reached end of life on 6 Jan 2026. It no longer receives security fixes.
Support timeline
Official dates, read directly from github.com.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 30 Sept 2025 | — |
| End of life | 6 Jan 2026 | 0.6 years ago |
| Latest release | 26.4.7 · 1 Dec 2025 | final |
The cost of staying: CVEs since end of life
3 Keycloak vulnerabilities have been published since 6 Jan 2026. All were fixed in supported branches — 26.4 received none of them. Source: NVD.
Keycloak CVEs published since 26.4's EOL, by year
0 of the 3 are rated critical · data refreshed 2026-08-09
Published 5 Mar 2026 · rated high — fixed in supported branches only, never in 26.4. Details
Published 27 Feb 2026 · rated medium — fixed in supported branches only, never in 26.4. Details
Published 27 Feb 2026 · rated low — fixed in supported branches only, never in 26.4. Details
This product uses data from the NVD API but is not endorsed or certified by the NVD.
Where to go from 26.4
Recommended target: Keycloak 26.7.
The newest actively supported branch is Keycloak 26.7 (latest release 26.7.1).
Frequently asked questions
Is Keycloak 26.4 still safe to use?
No. Keycloak 26.4 stopped receiving security fixes on 6 Jan 2026. Since then, 3 Keycloak vulnerabilities have been published and fixed in supported branches — Keycloak 26.4 received none of those fixes.
Can I still download Keycloak 26.4?
Yes — the final release (26.4.7) 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 26.4 to?
Upgrade to Keycloak 26.7, the newest actively supported branch.