Critical severity9.8NVD Advisory· Published May 25, 2021· Updated Jun 17, 2026

CVE-2021-33575

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
ruby-jssRubyGems	< 1.6.0	1.6.0

Affected products

Pixar/Ruby Jsscpe-rescue2 versions
(expand)+ 1 more
- (no CPE)
- cpe:2.3:a:pixar:ruby-jss:*:*:*:*:*:ruby:*:*range: <1.6.0
ghsa-coords
pkg:gem/ruby-jss
Range: < 1.6.0

Patches

Vulnerability mechanics

References

github.com/PixarAnimationStudios/ruby-jss/blob/e6d48dd8c77f9275c76787d60d3472615fcd9b77/CHANGES.mdnvdRelease NotesThird Party AdvisoryWEB
github.com/advisories/GHSA-vmfh-c547-v45hghsaADVISORY
github.com/patsplat/plist/tree/ce8f9ae42a114f603ea200c955e420782bffc4adnvdThird Party AdvisoryWEB
nvd.nist.gov/vuln/detail/CVE-2021-33575ghsaADVISORY
github.com/rubysec/ruby-advisory-db/blob/master/gems/ruby-jss/CVE-2021-33575.ymlghsaWEB

News mentions

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cvss	0.637
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000