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19.0.9

19.0.9 (October 14th, 2026)

14 Oct 2026todaychangedOriginal notes

This release closes 2 security advisories

highDenial of Service in Server FunctionsGHSA-h3gv-c5rc-p453
criticalUnauthenticated Remote Code Execution in React Server ComponentsGHSA-xqc2-xf4c-x3h3

React Server Components

Improve transport protocol (#37842 by @unstubbable and @eps1lon)

What happened next

It is the last release on the 19.0.x line. React has since moved on to 19.3.1.

Previous: 19.0.8 Next: 19.1.10

Traceary. Change, on the record.61 products, 4,794 releases

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