{"action":"Upgrade rack to 2.2.22 or later.","affected":[{"fixed":"2.2.22","introduced":"0"},{"fixed":"3.1.20","introduced":"3.0.0.beta1"},{"fixed":"3.2.5","introduced":"3.2.0"}],"component":"rack","cve_ids":["CVE-2026-25500"],"ecosystem":"RubyGems","epss":0.00269,"exploited":false,"fixed_versions":["2.2.22","3.1.20","3.2.5"],"ghsa_id":"GHSA-whrj-4476-wvmp","id":"tcs_01M5KENYJCZ2741S7KYYDXYJ5A","modified_at":"2026-09-10T03:50:36.160309045Z","published_at":"2026-02-17T18:46:35Z","references":["https://osv.dev/vulnerability/GHSA-whrj-4476-wvmp","https://github.com/rack/rack/security/advisories/GHSA-whrj-4476-wvmp","https://nvd.nist.gov/vuln/detail/CVE-2026-25500","https://github.com/rack/rack/commit/f2f225f297b99fbee3d9f51255d41f601fc40aff","https://github.com/rack/rack","https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2026-25500.yml"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"GHSA-whrj-4476-wvmp","url":"https://osv.dev/vulnerability/GHSA-whrj-4476-wvmp"}],"summary":"Stored XSS in Rack::Directory via javascript: filenames rendered into anchor href"}