https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 16:28:48 +0000 https://vulnerability.circl.lu/vuln/ghsa-mxw3-3hh2-x2mh <p><strong>Affected:</strong> RubyGems: rack</p> <p>## Summary</p> <p>`Rack::Directory`’s path check used a string prefix match on the expanded path. A request like `/../root_example/` can escape the configured root if the target path starts with the root string, allowing directory listing outside the intended root.</p> <p>## Details</p> <p>In `directory.rb`, `File.expand_path(File.join(root, path_info)).start_with?(root)` does not enforce a path boundary. If the server root is `/var/www/root`, a path like `/var/www/root_backup` passes the check because it shares the same prefix, so `Rack::Directory` will list that directory also.</p> <p>## Impact</p> <p>Information disclosure via directory listing outside the configured root when `Rack::Directory` is exposed to untrusted clients and a directory shares the root prefix (e.g., `public2`, `www_backup`).</p> <p>## Mitigation</p> <p>* Update to a patched version of Rack that correctly checks the root prefix. * Don&#39;t name directories with the same prefix as one which is exposed via `Rack::Directory`.</p> <p><strong>Affected:</strong> RubyGems: rack</p> <p>## Summary</p> <p>`Rack::Directory`’s path check used a string prefix match on the expanded path. A request like `/../root_example/` can escape the configured root if the target path starts with the root string, allowing directory listing outside the intended root.</p> <p>## Details</p> <p>In `directory.rb`, `File.expand_path(File.join(root, path_info)).start_with?(root)` does not enforce a path boundary. If the server root is `/var/www/root`, a path like `/var/www/root_backup` passes the check because it shares the same prefix, so `Rack::Directory` will list that directory also.</p> <p>## Impact</p> <p>Information disclosure via directory listing outside the configured root when `Rack::Directory` is exposed to untrusted clients and a directory shares the root prefix (e.g., `public2`, `www_backup`).</p> <p>## Mitigation</p> <p>* Update to a patched version of Rack that correctly checks the root prefix. * Don&#39;t name directories with the same prefix as one which is exposed via `Rack::Directory`.</p> https://vulnerability.circl.lu/vuln/ghsa-mxw3-3hh2-x2mh