immer

11.2.9 · 22 Oct 2026MIT89.4M / weekRepository Homepage npm Atom feed

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Security advisories

From OSV, open ones first. Each release line gets its own fix: an older major is fixed by a patch on that major, not by moving to the newest one.

Line	Newest	Where it stands
	11.2.9	No known advisory
	9.0.21	5 open advisories, worst critical · last release Mar 2023, no longer updated

Critical
Prototype Pollution in immerGHSA-33f9-j839-rf8h · 2 Sep 2021
fixed in 9.0.6
High
Prototype Pollution in immerGHSA-c36v-fmgq-m8hx · 7 Sep 2021
fixed in 9.0.6
High
Prototype Pollution in immerGHSA-9qmh-276g-x5pj · 20 Jan 2021
fixed in 8.0.1

What npm and deps.dev say about the latest release. Signals, not a verdict.

Reading npm and deps.dev…

Registry facts last checked 4 Nov 2026. Releases and advisories last read 4 Nov 2026.