add-shopify-header (npm) · Malicious Code
Affects add-shopify-headerSource GCVE Database
Malicious package : remove add-shopify-header and rotate any secrets on hosts that installed it.
Data as of 29 Oct 2026, 22:59 UTC
Malicious package
Published to npm · OSV MAL-2025-48973
What to do
Remove add-shopify-header 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 |
|---|---|---|
| npmadd-shopify-header | Affected
| Fixed in– |
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Description
The npm package 'add-shopify-header' version 9.9.0 contains malicious code that installs a dependency from a custom domain which executes an information stealer during installation. This malware targets sensitive tokens related to npm, git, and CI/CD environments. Systems with this package installed should be considered fully compromised, and all secrets and keys stored on those systems must be rotated immediately from a separate, trusted device.