CVE-2026-54639 Style Dictionary - Prototype Pollution in convertTokenData utility function

Style Dictionary, a build system for creating cross-platform styles, has a prototype pollution vulnerability starting in version 4.3.0 and prior to version 5.4.4. Impact users have: direct usage of convertTokenDatatokens, output: 'object' ;; indirect usage, via using Expand API; and/or indirect...

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...