Malware in apple-mycelium-fix
Malware was discovered in the npm package apple-mycelium-fix. 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
- apple-mycelium-fix
A malicious package named apple-mycelium-fix was published to npm and contains malware. According to the GitHub advisory, any computer that has 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, the advisory notes that full control of the computer may have been given to an outside entity, meaning there is no guarantee that removing the package alone will remove all malicious software resulting from the installation.\n\nThis represents a critical supply chain compromise affecting npm users who installed this package.
Indicators of compromise
- Packages
- apple-mycelium-fix
Remediation
- Immediately rotate all secrets and keys from a different, uncompromised computer
- Remove the apple-mycelium-fix package from all affected systems
- Assume full system compromise and conduct thorough security audit
- Monitor affected systems for signs of persistent malware or unauthorized access
- Review system logs for any suspicious activity during the period the package was installed
Sources
- GitHub Advisory GHSA-fjcr-w74v-m2qw · GitHub Advisory Database
Cite this entry
"Malware in apple-mycelium-fix." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 11, 2026; last updated June 11, 2026. https://supplychainattack.org/incident/malware-in-apple-mycelium-fix-qrl1s3
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