GHSA-VJ5C-M527-MPFF Style Dictionary - Prototype Pollution in convertTokenData utility function

Impact Prototype pollution. A malicious user can create a token array key: 'proto.foo', value: 'malicious' , when processed by convertTokenData utility function, it will pollute the Object.prototype globally where .foo will equal key: 'proto.foo', value: 'malicious' . This has been confirmed with...

CVE-2026-54639

CVE-2026-54639 affects Style Dictionary prior to 5.4.4, with a prototype pollution vulnerability in the convertTokenData utility (versions 4.3.0–4.x before 5.4.4). The impact is high when Style Dictionary is used as a Node.js server integration, moderate for web app integrations, and low for toke...