platform
Umbraco CMS: security advisories, deprecations and releases
Open-source .NET content management system for building and managing websites.
Get Umbraco CMS alerts Free. No account. One email, and only when something touches your
stack.
- Items, 90 days
- 1
- Critical
- 0
- Last critical
- none
- This week
- 0
Deprecations 1
- MEDIUM ACT BY 14 DEC 2026 endoflife.date · 2 Oct 2026
Umbraco CMS 13 reaches end of life on 2026-12-14
Umbraco CMS 13 reaches end of life on 2026-12-14, as listed by endoflife.date.
Only hear about Umbraco CMS when it touches your stack
Tell Zero what you run. You get one email, and only on the days something above applies to you.