{"action":"Upgrade devise to 5.0.4 or later.","affected":[{"fixed":"5.0.4","introduced":"0"}],"component":"devise","cve_ids":["CVE-2026-40295"],"ecosystem":"RubyGems","epss":0.00241,"exploited":false,"fixed_versions":["5.0.4"],"ghsa_id":"GHSA-jp94-3292-c3xv","id":"tcs_01M5KEKZZAGEM0BN28JCTGNART","modified_at":"2026-09-10T03:51:06.249835585Z","published_at":"2026-05-08T15:41:47Z","references":["https://osv.dev/vulnerability/GHSA-jp94-3292-c3xv","https://github.com/heartcombo/devise/security/advisories/GHSA-jp94-3292-c3xv","https://nvd.nist.gov/vuln/detail/CVE-2026-40295","https://github.com/heartcombo/devise/commit/025fe2124f9928766fc46520e999633b598d0360","https://github.com/heartcombo/devise","https://github.com/rubysec/ruby-advisory-db/blob/master/gems/devise/CVE-2026-40295.yml"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"GHSA-jp94-3292-c3xv","url":"https://osv.dev/vulnerability/GHSA-jp94-3292-c3xv"}],"summary":"Devise has an Open Redirect via Unvalidated `request.referrer` in Timeoutable Session Timeout Handler"}