Malware in react-campaign-optimizer
Malware was discovered in the npm package react-campaign-optimizer. Systems with this package installed are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- react-campaign-optimizer
The npm package react-campaign-optimizer was found to contain malware. According to the GitHub Advisory (GHSA-m55j-v4cf-p5w5), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory recommends that all secrets and keys stored on affected computers be rotated immediately from a different, uncompromised system. While the 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.\n\nThis represents a critical supply chain attack through a compromised package in the npm ecosystem.
Indicators of compromise
- Packages
- react-campaign-optimizer
Remediation
- Immediately isolate any system with react-campaign-optimizer installed from the network
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the react-campaign-optimizer package from all affected systems
- Perform a full security audit and malware scan on all affected systems
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system reimaging if compromise is confirmed
Sources
- GitHub Advisory GHSA-m55j-v4cf-p5w5 · GitHub Advisory Database
Cite this entry
"Malware in react-campaign-optimizer." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 24, 2026; last updated June 24, 2026. https://supplychainattack.org/incident/malware-in-react-campaign-optimizer-1v9at5
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