MAL-2026-6841: Malicious code in jsonupper (npm)
The npm package 'jsonupper' version 1.0.0 contains malicious code that can fully compromise any computer on which it is installed or running. The compromise may allow an attacker full control over the affected system. Immediate removal of the package is recommended, but removal alone may not eliminate all malicious software introduced. All secrets and keys stored on the compromised system should be rotated from a separate, secure computer.
AI Analysis
Technical Summary
The 'jsonupper' npm package version 1.0.0 is identified as containing malicious code that compromises the host system completely. According to the source advisory, any system with this package installed or running should be considered fully compromised, implying that an attacker may have gained full control. The advisory recommends removing the package and rotating all secrets and keys from a different, uncompromised system. There is no indication of a patch or fix available, and no known exploits in the wild have been reported yet.
Potential Impact
Full system compromise on any computer with 'jsonupper' version 1.0.0 installed or running. Potential exposure and theft of secrets and keys stored on the system. Removal of the package does not guarantee complete remediation due to possible persistence of malicious software.
Mitigation Recommendations
Remove the 'jsonupper' package version 1.0.0 immediately from all affected systems. Rotate all secrets and keys stored on the compromised systems from a separate, secure computer. Because full control of the computer may have been given to an attacker, consider rebuilding or thoroughly cleaning the affected systems. No official patch or fix is available; follow vendor or repository advisories for updates.
MAL-2026-6841: Malicious code in jsonupper (npm)
Description
The npm package 'jsonupper' version 1.0.0 contains malicious code that can fully compromise any computer on which it is installed or running. The compromise may allow an attacker full control over the affected system. Immediate removal of the package is recommended, but removal alone may not eliminate all malicious software introduced. All secrets and keys stored on the compromised system should be rotated from a separate, secure computer.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The 'jsonupper' npm package version 1.0.0 is identified as containing malicious code that compromises the host system completely. According to the source advisory, any system with this package installed or running should be considered fully compromised, implying that an attacker may have gained full control. The advisory recommends removing the package and rotating all secrets and keys from a different, uncompromised system. There is no indication of a patch or fix available, and no known exploits in the wild have been reported yet.
Potential Impact
Full system compromise on any computer with 'jsonupper' version 1.0.0 installed or running. Potential exposure and theft of secrets and keys stored on the system. Removal of the package does not guarantee complete remediation due to possible persistence of malicious software.
Mitigation Recommendations
Remove the 'jsonupper' package version 1.0.0 immediately from all affected systems. Rotate all secrets and keys stored on the compromised systems from a separate, secure computer. Because full control of the computer may have been given to an attacker, consider rebuilding or thoroughly cleaning the affected systems. No official patch or fix is available; follow vendor or repository advisories for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-6841
- Osv Schema Version
- 1.7.4
- Aliases
- ["GHSA-7g6j-h5h4-7wjx"]
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a4c343c27e9c797195faea2
Added to database: 07/06/2026, 23:03:24 UTC
Last enriched: 07/06/2026, 23:26:17 UTC
Last updated: 07/06/2026, 23:26:17 UTC
Views: 2
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