nodejs-june-2026-security-releases: Thursday, June 18, 2026 Security Releases

Published Jun 18, 2026
·
Updated

Updates are now available for the 26.x, 24.x, 22.x Node.js release lines for the following issues.

This security release includes the following dependency updates to address public vulnerabilities:

llhttp (9.4.2) on all release lines

nghttp2 (1.69.0) on all release lines

openssl (3.5.7) on all release lines

undici (8.5.0) on 26.3.1

undici (7.28.0) on 24.17.0

undici (6.27.0) on 22.23.0

Affected Software

5 affected components
Node.js Node.js=26.3.1, =24.17.0, =22.23.0
npm/llhttp=9.4.2
nghttp2 nghttp2=1.69.0
OpenSSL OpenSSL=3.5.7
npm/undici=8.5.0, =7.28.0, =6.27.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade llhttp to a version that resolves this vulnerability.

    Fixed in 9.4.2
  2. Upgrade

    Upgrade nghttp2 to a version that resolves this vulnerability.

    Fixed in 1.69.0
  3. Upgrade

    Upgrade openssl to a version that resolves this vulnerability.

    Fixed in 3.5.7
  4. Upgrade

    Upgrade undici to a version that resolves this vulnerability.

    Fixed in 6.27.0
  5. Upgrade

    Upgrade undici to a version that resolves this vulnerability.

    Fixed in 7.28.0
  6. Upgrade

    Upgrade undici to a version that resolves this vulnerability.

    Fixed in 8.5.0

Event History

Jun 18, 2026
Advisory Published
via Node.js·04:00 AM
Data Sourced
via Node.js·04:00 AM
Description

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

Which Node.js release lines have security updates available?

Updates are available for the 26.x, 24.x, and 22.x Node.js release lines.

2

Which dependency updates apply to every supported release line?

All listed release lines include llhttp 9.4.2, nghttp2 1.69.0, and OpenSSL 3.5.7.

3

Which undici version is included for each updated Node.js line?

Node.js 26.3.1 includes undici 8.5.0, Node.js 24.17.0 includes undici 7.28.0, and Node.js 22.23.0 includes undici 6.27.0.

Contact

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