sp-api-dev-assistant-mcp-server
This report shows the evidence for sp-api-dev-assistant-mcp-server@99.9.0, the only known version.
This package appears in our research on the dependency confusion probes at version 99 and above, with how it works, the full package list and what to do if you installed it.
OpenSSF/OSV Malicious Advisory
imported 4mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-5853 confirms this npm version as malicious.
Advisory
MAL-2026-5853
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in sp-api-dev-assistant-mcp-server (npm)
Details
Package contains only package.json and README.md, with the README explicitly stating it is a proof-of-concept squatting an unclaimed npm name that was referenced as a dependency in an Amazon-internal repository. The version is set to 99.9.0 to win semver resolution against any internal release. The current tarball ships no `scripts`, no `main`, and no source files, so installing this version performs no code execution and exfiltrates no data — the harm is limited to the name being held by a non-Amazon party who could publish payload-bearing future versions. Installers whose package manager resolves the public npm registry for this name would receive whatever the squatter publishes next.
## Source: ghsa-malware (41506fcb0f329d1b260c8aea68fe27eb7b648576521da211f366dc49459bc388) 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.
References
Source & flagged code
0 flagged · loading sourceNo flagged code excerpts are attached to this scan.
Findings
1 High
HighOsv Malicious Advisory
Affected versions and remediation
This report applies to sp-api-dev-assistant-mcp-server@99.9.0.
The versions list below shows the verdict for each recorded version.
- Avoid installing sp-api-dev-assistant-mcp-server@99.9.0. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.
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