CVE-2021-33575: Pixar Ruby-Jss

Critical severity, CVSS 9.8. EPSS: 2.6% chance of exploitation in the next 30 days.

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.

Affected products

• Pixar Ruby-Jss: before 1.6.0 (fixed in 1.6.0)

Published 2021-05-25. Last modified 2026-06-17.