End of life, severity medium

Node.js 20 reached end of life on 2026-04-30

Published October 31, 2026

Node.js 20 no longer gets security fixes.

Deadline: April 30, 2026

What's affected

• node runtime>=20 <21

What to do

1. Upgrade Node.js to a supported version (latest 20.x is 20.20.2; move to a newer cycle).

Check whether you were affected

Pharon tells teams automatically when this affects something they run. To check a machine, run this in Claude Code with the Pharon plugin, in the repository that uses it:

/pharon:check-incident eol-nodejs-20

References

• https://endoflife.date/nodejs

Notice eol-nodejs-20, signed with key feed-prod-2026-10 (Ed25519). The Pharon CLI verifies the signature before using a notice.