Malware in data-fetching-client
Malware was discovered in the npm package data-fetching-client. Systems with this package installed or running should be considered fully compromised, requiring immediate rotation of all secrets and keys from a separate, uncompromised system.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- data-fetching-client
The npm package data-fetching-client was found to contain malware. According to the GitHub advisory, 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 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\nThe advisory was published on 2026-06-25 via GitHub's advisory database.
Indicators of compromise
- Packages
- data-fetching-client
Remediation
- Immediately rotate all secrets, API keys, and credentials from a separate, uncompromised computer
- Remove the data-fetching-client package from all affected systems
- Conduct a full security audit of any system that had this package installed
- Monitor affected systems for signs of unauthorized access or persistence mechanisms
- Review and revoke any credentials or tokens that may have been exposed
Sources
- GitHub Advisory GHSA-j99m-jc5r-9w58 · GitHub Advisory Database
Cite this entry
"Malware in data-fetching-client." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 25, 2026; last updated June 25, 2026. https://supplychainattack.org/incident/malware-in-data-fetching-client-15qu9y
Suggest a correction
Found an error or have a newer source? Corrections to factual errors take priority over new entries.
Related incidents
- activecritical
Malware in @su-doughnym/react-dlb
The npm package @su-doughnym/react-dlb contains malware that grants full system compromise to an outside entity. Any computer with this package installed or running should be considered fully compromised and all secrets and keys should be rotated immediately from a different computer.
npmCompromised package - activecritical
Malware in nabisco
The npm package 'nabisco' contains malware that grants full system compromise to an outside entity. Any computer with this package installed or running should be considered fully compromised.
npmCompromised package - containedcritical
Malware in @su-doughnym/metrics-js
Malware was discovered in the npm package @su-doughnym/metrics-js. Systems with this package installed are considered fully compromised and require immediate remediation.
npmCompromised package - activecritical
Malware in hs-locale-management
The npm package hs-locale-management contains malware that grants full control of affected systems. Any computer with this package installed should be considered fully compromised.
npmCompromised package