{"id":"CVE-2024-27456","aliases":["GHSA-785g-282q-pwvx"],"url":"https://o3.security/vulnerability/CVE-2024-27456","summary":"Rack CORS Middleware has Insecure File Permissions","details":"rack-cors (aka Rack CORS Middleware) 2.0.1 has 0666 permissions for the .rb files.","published":"2024-02-26T00:00:00Z","modified":"2026-08-12T03:51:15.912121760Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":{"score":0.00771,"percentile":0.5251,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"rack-cors","fixedVersion":"2.0.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27456.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-27456"},{"type":"REPORT","url":"https://github.com/cyu/rack-cors/issues/274"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-785g-282q-pwvx"},{"type":"PACKAGE","url":"https://github.com/cyu/rack-cors"},{"type":"WEB","url":"https://github.com/cyu/rack-cors/blob/878063987bd1ca956282dda95697fd821bf24d2e/CHANGELOG.md#changed"},{"type":"WEB","url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack-cors/CVE-2024-27456.yml"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:15.912121760Z"}}