yellowcard-styling-config (npm) · Malicious Code
Affects yellowcard-styling-configSource GCVE Database
Malicious package : remove yellowcard-styling-config and rotate any secrets on hosts that installed it.
Data as of 29 Oct 2026, 23:00 UTC
Malicious package
Published to npm · OSV MAL-2025-2541
What to do
Remove yellowcard-styling-config from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmyellowcard-styling-config | Affected
| Fixed in– |
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Description
The npm package 'yellowcard-styling-config' versions 9999.1.1 and 1.0.1 have been identified as malicious. During installation, it installs a dependency from a custom domain that runs an information stealer targeting npm, git, and CI/CD tokens. The package communicates with domains linked to malicious activity and executes commands associated with malicious behavior.