build(deps): bump rack from 2.2.19 to 2.2.20 (#770)

dependabot[bot] · web-flow · commit 641310d8cc2e · 2025-10-13T07:09:07.000+13:00
Bumps [rack](https://github.com/rack/rack) from 2.2.19 to 2.2.20. <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/rack/rack/blob/main/CHANGELOG.md">rack's changelog</a>.</em></p> <blockquote> <h1>Changelog</h1> <p>All notable changes to this project will be documented in this file. For info on how to format all future additions to this file please reference <a href="https://keepachangelog.com/en/1.0.0/">Keep A Changelog</a>.</p> <h2>Unreleased</h2> <h3>Security</h3> <ul> <li><a href="https://github.com/advisories/GHSA-r657-rxjc-j557">CVE-2025-61780</a> Improper handling of headers in <code>Rack::Sendfile</code> may allow proxy bypass.</li> <li><a href="https://github.com/advisories/GHSA-6xw4-3v39-52mm">CVE-2025-61919</a> Unbounded read in <code>Rack::Request</code> form parsing can lead to memory exhaustion.</li> </ul> <h3>SPEC Changes</h3> <ul> <li>Define <code>rack.response_finished</code> callback arguments more strictly. (<a href="https://redirect.github.com/rack/rack/pull/2365">#2365</a>, <a href="https://github.com/skipkayhil"><code>@​skipkayhil</code></a>)</li> </ul> <h3>Added</h3> <ul> <li>Add <code>Rack::Files#assign_headers</code> to allow overriding how the configured file headers are set. (<a href="https://redirect.github.com/rack/rack/pull/2377">#2377</a>, <a href="https://github.com/codergeek121"><code>@​codergeek121</code></a>)</li> <li>Add support for <code>rack.response_finished</code> to <code>Rack::TempfileReaper</code>. (<a href="https://redirect.github.com/rack/rack/pull/2363">#2363</a>, <a href="https://github.com/skipkayhil"><code>@​skipkayhil</code></a>)</li> <li>Add support for streaming bodies when using <code>Rack::Events</code>. (<a href="https://redirect.github.com/rack/rack/blob/main/redirect.github.com/rack/rack/pull/2375">#2375</a>, <a href="https://github.com/unflxw"><code>@​unflxw</code></a>)</li> </ul> <h3>Changed</h3> <ul> <li>Raise before exceeding a part limit, not after. (<a href="https://redirect.github.com/rack/rack/pull/2362">#2362</a>, <a href="https://github.com/matthew-puku"><code>@​matthew-puku</code></a>)</li> <li>Rack::Deflater now uses a fixed GZip mtime value. (<a href="https://redirect.github.com/rack/rack/pull/2372">#2372</a>, <a href="https://github.com/bensheldon"><code>@​bensheldon</code></a>)</li> </ul> <h2>[3.2.2] - 2025-10-07</h2> <h3>Security</h3> <ul> <li><a href="https://github.com/advisories/GHSA-wpv5-97wm-hp9c">CVE-2025-61772</a> Multipart parser buffers unbounded per-part headers, enabling DoS (memory exhaustion)</li> <li><a href="https://github.com/advisories/GHSA-w9pc-fmgc-vxvw">CVE-2025-61771</a> Multipart parser buffers large non‑file fields entirely in memory, enabling DoS (memory exhaustion)</li> <li><a href="https://github.com/advisories/GHSA-p543-xpfm-54cp">CVE-2025-61770</a> Unbounded multipart preamble buffering enables DoS (memory exhaustion)</li> </ul> <h2>[3.2.1] -- 2025-09-02</h2> <h3>Added</h3> <ul> <li>Add support for streaming bodies when using <code>Rack::Events</code>. (<a href="https://redirect.github.com/rack/rack/blob/main/redirect.github.com/rack/rack/pull/2375">#2375</a>, <a href="https://github.com/unflxw"><code>@​unflxw</code></a>)</li> </ul> <h3>Fixed</h3> <ul> <li>Fix an issue where a <code>NoMethodError</code> would be raised when using <code>Rack::Events</code> with streaming bodies. (<a href="https://redirect.github.com/rack/rack/blob/main/redirect.github.com/rack/rack/pull/2375">#2375</a>, <a href="https://github.com/unflxw"><code>@​unflxw</code></a>)</li> </ul> <h2>[3.2.0] - 2025-07-31</h2> <p>This release continues Rack's evolution toward a cleaner, more efficient foundation while maintaining backward compatibility for most applications. The breaking changes primarily affect deprecated functionality, so most users should experience a smooth upgrade with improved performance and standards compliance.</p> <h3>SPEC Changes</h3>  </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/rack/rack/commit/6ef591522bb44f80654ad1a80654ba46cafdc7c1"><code>6ef5915</code></a> Bump patch version.</li> <li><a href="https://github.com/rack/rack/commit/4e2c903991a790ee211a3021808ff4fd6fe82881"><code>4e2c903</code></a> Unbounded read in <code>Rack::Request</code> form parsing can lead to memory exhaustion.</li> <li><a href="https://github.com/rack/rack/commit/fba2c8bc63eb787ff4b19bc612d315fda6126d85"><code>fba2c8b</code></a> Improper handling of proxy headers in <code>Rack::Sendfile</code> may allow proxy bypass.</li> <li><a href="https://github.com/rack/rack/commit/ed3d8340d1a7955332b51e74c1075ef3547c09dd"><code>ed3d834</code></a> Normalize adivsories links.</li> <li>See full diff in <a href="https://github.com/rack/rack/compare/v2.2.19...v2.2.20">compare view</a></li> </ul> </details> <br /> [![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=rack&package-manager=bundler&previous-version=2.2.19&new-version=2.2.20)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. 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diff --git a/Gemfile.lock b/Gemfile.lock
@@ -295,7 +295,7 @@ GEM
     pundit (2.1.1)
       activesupport (>= 3.0.0)
     racc (1.8.1)
-    rack (2.2.19)
+    rack (2.2.20)
     rack-canonical-host (1.1.0)
       addressable (> 0, < 3)
       rack (>= 1.0.0, < 3)
