blog: update june 2026 security releases announcement

[aduh95]

Description

Validation

Related Issues

Check List

• I have read the Contributing Guidelines and made commit messages that follow the guideline.
• I have run pnpm format to ensure the code follows the style guide.
• I have run pnpm test to check if all tests are passing.
• I have run pnpm build to check if the website builds without errors.
• I've covered new added functionality with unit tests if necessary.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
nodejs-org	Ready	Preview	Jun 18, 2026 1:24pm

[cursor]

PR Summary

Low Risk
Content-only changes to a blog markdown file and site banner configuration; no application logic or security-sensitive runtime code.

Overview
Updates the June 2026 security releases vulnerability post from a pre-release notice to the shipped announcement: new publish date/title, an UPDATE 2026-06-18 section with dependency version bumps (llhttp, nghttp2, openssl, undici per line), per-CVE write-ups with severities and affected release lines, download links for v22.23.1, v24.17.1, and v26.3.2, and release timing text changed to state releases are available.

The homepage index banner in site.json is retargeted from the March security release to the June one (dates, copy, and link through June 23, 2026).

^{Reviewed by Cursor Bugbot for commit d1aed79. Bugbot is set up for automated code reviews on this repo. Configure here.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.72%. Comparing base (221839b) to head (d1aed79).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8962      +/-   ##
==========================================
+ Coverage   75.68%   75.72%   +0.04%     
==========================================
  Files         102      102              
  Lines        8676     8676              
  Branches      322      321       -1     
==========================================
+ Hits         6566     6570       +4     
+ Misses       2107     2103       -4     
  Partials        3        3              

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[github-actions]

Lighthouse Results

URL	Performance	Accessibility	Best Practices	SEO	Report
/en	🟢 93	🟢 96	🟢 96	🟢 100	🔗
/en/about	🟢 100	🟢 94	🟢 96	🟠 88	🔗
/en/about/previous-releases	🟢 98	🟢 97	🟢 96	🟢 100	🔗
/en/download	🟢 99	🟢 96	🟠 81	🟢 100	🔗
/en/download/archive/current	🟢 100	🟢 97	🟢 100	🟢 100	🔗
/en/blog	🟢 99	🟢 97	🟢 96	🟢 100	🔗

[AugustinMauroy]

don't you need any badge/banner for that ?