Vulnerability/
https://seclists.org/oss-sec/2026/q4/310

https://seclists.org/oss-sec/2026/q4/310: Upcoming Node.js security lease 2026/10/21

Published Oct 22, 2026

Updated

Affected Software

1 affected component

OpenJS Foundation Node.js=22.x, =24.x, =26.x

Frequently Asked Questions

Which Node.js release lines should be updated?

Updates are available for the 26.x, 24.x, and 22.x release lines. The reported high-severity DNS resolution issue affects all three lines.

Is the TLS certificate hostname bypass relevant to Node.js 22.x?

No. The TLS certificate hostname bypass involving IP addresses written with fullwidth digits is reported to affect 26.x and 24.x only.

Which dependency updates are included in the security releases?

c-ares, ca-cert updates related to the eMudhra Intermediate CA compromise, and Undici are updated in 26.x, 24.x, and 22.x. OpenSSL is updated in 24.x and 22.x, while SQLite is updated in 22.x only.

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SecAlerts Pty Ltd.
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