Malicious code in middleware-jwt (npm)
The npm package middleware-jwt version 1.0.0 contains malicious code or depends on a package with malicious code. Installing or running this package can fully compromise the affected system. Secrets and keys stored on the compromised system should be rotated immediately from a different, trusted machine. Simply removing the package may not eliminate all malicious software introduced by it.
AI Analysis
Technical Summary
The middleware-jwt package version 1.0.0 was found to contain malicious code or to consume a dependency that contains malicious code. This malicious code can lead to full compromise of any computer where the package is installed or running. The advisory warns that all secrets and keys on the compromised system should be rotated from a separate, secure system. Due to the nature of the compromise, removing the package alone may not fully remediate the infection.
Potential Impact
Systems with middleware-jwt version 1.0.0 installed or running are considered fully compromised. Attackers may have gained full control over the system, potentially exposing all stored secrets and keys. The compromise may persist even after removal of the package, indicating a high risk of persistent malicious presence.
Mitigation Recommendations
Remove the middleware-jwt package version 1.0.0 immediately from affected systems. Rotate all secrets and keys that were stored on the compromised system, performing this rotation from a different, trusted computer. Because full system compromise is possible, consider rebuilding or thoroughly cleaning the affected system. There is no official patch or fix available; remediation relies on removal and secret rotation.
Malicious code in middleware-jwt (npm)
Description
The npm package middleware-jwt version 1.0.0 contains malicious code or depends on a package with malicious code. Installing or running this package can fully compromise the affected system. Secrets and keys stored on the compromised system should be rotated immediately from a different, trusted machine. Simply removing the package may not eliminate all malicious software introduced by it.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The middleware-jwt package version 1.0.0 was found to contain malicious code or to consume a dependency that contains malicious code. This malicious code can lead to full compromise of any computer where the package is installed or running. The advisory warns that all secrets and keys on the compromised system should be rotated from a separate, secure system. Due to the nature of the compromise, removing the package alone may not fully remediate the infection.
Potential Impact
Systems with middleware-jwt version 1.0.0 installed or running are considered fully compromised. Attackers may have gained full control over the system, potentially exposing all stored secrets and keys. The compromise may persist even after removal of the package, indicating a high risk of persistent malicious presence.
Mitigation Recommendations
Remove the middleware-jwt package version 1.0.0 immediately from affected systems. Rotate all secrets and keys that were stored on the compromised system, performing this rotation from a different, trusted computer. Because full system compromise is possible, consider rebuilding or thoroughly cleaning the affected system. There is no official patch or fix available; remediation relies on removal and secret rotation.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-5888
- Osv Schema Version
- 1.7.4
- Aliases
- ["GHSA-g9mr-rvmw-fg9c"]
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a4f6c6768715ace4315a421
Added to database: 07/09/2026, 09:39:51 UTC
Last enriched: 07/09/2026, 10:05:38 UTC
Last updated: 07/30/2026, 05:37:27 UTC
Views: 11
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