Skip to content
supplychainattack.orgSupply chain attack incident catalog
containedcritical

Malware in caldryn

Malware was discovered in the npm package caldryn, resulting in full system compromise for any computer with the package installed or running. All secrets and keys on affected systems should be rotated immediately from a different computer.

ShareXLinkedInHacker News
Disclosed
Last updated
Blast radius
Any system with the package installed or running
Ecosystems
npm
Attack vectors
Compromised package
Affected entities
  • caldryn

The npm package caldryn was found to contain malware. According to the GitHub Advisory (GHSA-h9c8-8wq8-r6q2), 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 computer. While the package should be removed, there is no guarantee that removing it 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 npm package with potential for complete system takeover.

Indicators of compromise

Packages
  • caldryn

Remediation

  • Immediately rotate all secrets and keys from a different, unaffected computer
  • Remove the caldryn package from all affected systems
  • Audit system logs for unauthorized access or activity
  • Consider the affected system(s) potentially fully compromised and plan for complete rebuild if critical infrastructure
  • Check for any other suspicious packages or modifications on affected systems

Sources

  1. GitHub Advisory GHSA-h9c8-8wq8-r6q2 · GitHub Advisory Database

Cite this entry

"Malware in caldryn." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 22, 2026; last updated July 22, 2026. https://supplychainattack.org/incident/malware-in-caldryn-uh20bw

Suggest a correction

Found an error or have a newer source? Corrections to factual errors take priority over new entries.

Related incidents

  1. containedcritical

    Malware in app-data-lts

    The npm package app-data-lts was found to contain malware, potentially giving full control of affected systems to an outside entity. Any computer with this package installed or running should be considered fully compromised.

    npmCompromised package
  2. containedcritical

    Malware in app-data-ist

    The npm package app-data-ist was found to contain malware, potentially giving full control of affected systems to an outside entity. All systems with this package installed should be considered fully compromised.

    npmCompromised package
  3. containedcritical

    Malware in app-node-layer

    Malware was discovered in the npm package app-node-layer. Systems with this package installed or running are considered fully compromised and require immediate remediation.

    npmCompromised package
  4. activecritical

    Malware in app-data-layer

    The npm package app-data-layer was found to contain malware, resulting in full system compromise of any computer with the package installed or running. All secrets and keys should be rotated immediately from a different computer.

    npmCompromised package