Malicious code in winston-js-express (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: ghsa-malware (3b09a8f94bac51a72427037e5f2c1cd18d46387e0d4d51d53cd401801025bb9f) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
AI Analysis
Technical Summary
The winston-js-express package, specifically versions 1.0.0, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.1.1, and 1.1.2, contains embedded malicious code. Installation or execution of this package results in a full compromise of the host system, potentially allowing an attacker full control. Due to the nature of the compromise, simply removing the package may not remove all malicious artifacts or backdoors. The threat is identified as a malicious package within the npm ecosystem and is tracked under MAL-2026-6904 and GHSA-fhrx-mrfp-3fvg.
Potential Impact
Systems with any of the affected versions of winston-js-express installed are considered fully compromised. Attackers may have gained full control over the system, risking exposure or theft of all stored secrets and keys. The presence of malicious code implies potential persistent backdoors or additional malware beyond the package itself.
Mitigation Recommendations
Remove the winston-js-express package immediately from all affected systems. Rotate all secrets, keys, and credentials stored or used on the compromised systems from a separate, trusted environment. Because full system compromise is likely, consider rebuilding or thoroughly auditing affected systems to ensure removal of all malicious components. No official patch or fix is currently available; remediation relies on removal and secret rotation.
Malicious code in winston-js-express (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: ghsa-malware (3b09a8f94bac51a72427037e5f2c1cd18d46387e0d4d51d53cd401801025bb9f) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The winston-js-express package, specifically versions 1.0.0, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.1.1, and 1.1.2, contains embedded malicious code. Installation or execution of this package results in a full compromise of the host system, potentially allowing an attacker full control. Due to the nature of the compromise, simply removing the package may not remove all malicious artifacts or backdoors. The threat is identified as a malicious package within the npm ecosystem and is tracked under MAL-2026-6904 and GHSA-fhrx-mrfp-3fvg.
Potential Impact
Systems with any of the affected versions of winston-js-express installed are considered fully compromised. Attackers may have gained full control over the system, risking exposure or theft of all stored secrets and keys. The presence of malicious code implies potential persistent backdoors or additional malware beyond the package itself.
Mitigation Recommendations
Remove the winston-js-express package immediately from all affected systems. Rotate all secrets, keys, and credentials stored or used on the compromised systems from a separate, trusted environment. Because full system compromise is likely, consider rebuilding or thoroughly auditing affected systems to ensure removal of all malicious components. No official patch or fix is currently available; remediation relies on removal and secret rotation.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-6904
- Osv Schema Version
- 1.7.4
- Aliases
- ["GHSA-fhrx-mrfp-3fvg"]
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a4c342127e9c797195f9a48
Added to database: 07/06/2026, 23:02:57 UTC
Last enriched: 07/06/2026, 23:21:10 UTC
Last updated: 07/29/2026, 18:40:35 UTC
Views: 29
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