{"id":"CVE-2021-33575","aliases":["GHSA-vmfh-c547-v45h"],"url":"https://o3.security/vulnerability/CVE-2021-33575","summary":"Remote code execution in ruby-jss","details":"The Pixar ruby-jss gem before 1.6.0 allows remote attackers to execute arbitrary code because of the Plist gem's documented behavior of using Marshal.load during XML document processing.","published":"2021-05-25T23:15:07.457Z","modified":"2026-07-08T22:14:04.173413Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.02603,"percentile":0.84133,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"ruby-jss","fixedVersion":"1.6.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/PixarAnimationStudios/ruby-jss/blob/e6d48dd8c77f9275c76787d60d3472615fcd9b77/CHANGES.md#160---2021-05-24"},{"type":"ADVISORY","url":"https://github.com/patsplat/plist/tree/ce8f9ae42a114f603ea200c955e420782bffc4ad#label-Security+considerations"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T22:14:04.173413Z"}}