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Wed, 24 Jun 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Style-dictionary
Style-dictionary style-dictionary |
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| Vendors & Products |
Style-dictionary
Style-dictionary style-dictionary |
Wed, 24 Jun 2026 13:30:00 +0000
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| Metrics |
ssvc
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Wed, 24 Jun 2026 00:30:00 +0000
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| Description | 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 `convertTokenData(tokens, { output: 'object' });`; indirect usage, via using Expand API; and/or indirect usage via SD's transform lifecycle. Impact is high for this when style-dictionary is used as an integration in a NodeJS server application. Impact is moderate for when style-dictionary is used as an integration in a Web application. Impact is low for most common cases where the user of style-dictionary also maintains the tokens, and access is limited via read/write access to the repository/workflows where it is used. A patch has been published in version `5.4.4`. The only known workaround is to sanitize token data first. Whether using DTCG format or old Style Dictionary format, check the token data object recursively for any object keys that include `__proto__`. | |
| Title | Style Dictionary - Prototype Pollution in convertTokenData utility function | |
| Weaknesses | CWE-1321 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-24T13:02:09.090Z
Reserved: 2026-06-15T20:07:02.186Z
Link: CVE-2026-54639
Updated: 2026-06-24T13:02:04.319Z
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OpenCVE Enrichment
Updated: 2026-06-24T16:05:20Z