Malware in crypto-javascript
Malware was discovered in the npm package crypto-javascript. Systems with this package installed or running should be considered fully compromised, with all secrets and keys requiring immediate rotation from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- crypto-javascript
The npm package crypto-javascript was found to contain malware. According to the GitHub advisory (GHSA-v8fq-265h-rcw5), any computer with this package installed or running should be considered fully compromised.\n\nImmediate action is required: all secrets and keys stored on affected computers must be rotated immediately from a different, uncompromised system. While the malicious package should be removed, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the compromise, given that the attacker may have gained full control of the system.\n\nThe advisory was published on June 11, 2026."
Indicators of compromise
- Packages
- crypto-javascript
Remediation
- Immediately rotate all secrets and keys from a different, uncompromised computer
- Remove the crypto-javascript package from all affected systems
- Conduct a full security audit of any system that had this package installed
- Consider the affected system(s) as potentially fully compromised and take appropriate incident response measures
- Review access logs and monitor for signs of unauthorized activity on affected systems
Sources
- GitHub Advisory GHSA-v8fq-265h-rcw5 · GitHub Advisory Database
Cite this entry
"Malware in crypto-javascript." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 11, 2026; last updated June 11, 2026. https://supplychainattack.org/incident/malware-in-crypto-javascript-bjrd3g
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