{"$ref":"https://www.cert.ssi.gouv.fr/openapi.json","affected_systems":[{"description":"activestorage versions ant\u00e9rieures \u00e0 7.2.3.2","product":{"name":"activestorage","vendor":{"name":"Ruby on Rails","scada":false}}},{"description":"activestorage versions 8.1.x ant\u00e9rieures \u00e0 8.1.3.1","product":{"name":"activestorage","vendor":{"name":"Ruby on Rails","scada":false}}},{"description":"activestorage versions 8.0.x ant\u00e9rieures \u00e0 8.0.5.1","product":{"name":"activestorage","vendor":{"name":"Ruby on Rails","scada":false}}}],"affected_systems_content":"","content":"## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l'\u00e9diteur pour l'obtention des correctifs (cf. section Documentation).","cves":[{"name":"CVE-2026-66066","url":"https://www.cve.org/CVERecord?id=CVE-2026-66066"}],"links":[],"reference":"CERTFR-2026-AVI-0948","revisions":[{"description":"Version initiale","revision_date":"2026-07-30T00:00:00.000000"}],"risks":[{"description":"Ex\u00e9cution de code arbitraire \u00e0 distance"},{"description":"Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"}],"summary":"Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans Ruby on Rails activestorage. Elle permet \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance et une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.","title":"Vuln\u00e9rabilit\u00e9 dans Ruby on Rails activestorage","vendor_advisories":[{"published_at":"2026-07-29","title":"Bulletin de s\u00e9curit\u00e9 Ruby on Rails 91432","url":"https://discuss.rubyonrails.org/t/cve-2026-66066-possible-arbitrary-file-read-and-remote-code-execution-in-active-storage-variant-processing/91432"}]}