superlocalmemory@4.1.16
Local-first agent memory with MCP and an agent-native CLI. Documented clients include Claude Code, Cursor, and Windsurf.
AI Security Review
scanned 1mo ago · by lpm-firewall-aiThis is an automatic staged runtime download whose payload is not available for source inspection. The visible code is otherwise package-scoped and does not prove malicious behavior.
Static reason
One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review
Trigger
Installing the npm package runs postinstall.
Impact
A Python wheel and its dependencies, which are absent from this snapshot, become trusted executable code in .slm-venv.
Mechanism
Automatic pip installation of an external runtime payload.
AI rationale
This is an automatic staged runtime download whose payload is not available for source inspection. The visible code is otherwise package-scoped and does not prove malicious behavior.
Evidence
scripts/postinstall.js.slm-venvpackage.json
Decision evidence
public snapshotAI called this Suspicious at 85.0% confidence as Unknown with medium false-positive risk.
Evidence for warning
- The npm postinstall hook runs automatically and invokes pip.
- The npm archive intentionally omits the Python implementation and downloads it during installation, so the runtime payload cannot be inspected here.
- All five scanner-flagged hook files are small wrappers around the SuperLocalMemory Python CLI; they do not contain hidden JavaScript payload logic.
Evidence against
- The installer creates the virtual environment beneath the package directory and checks that the installed Python distribution matches the npm version.
- No lifecycle code writes IDE or agent configuration; the included Codex configuration is explicitly a manual-copy template.
- The included tool-event hook sends only to a loopback address and is not registered by the npm lifecycle hook.
Behavioral surface
ChildProcessDynamicRequireEnvironmentVarsFilesystem
HighEntropyStringsUrlStrings
Source & flagged code
10 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node scripts/postinstall.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node scripts/postinstall.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgide/hooks/memory-profile-skill.jsView file
•matchType = normalized_sha256
matchedPackage = superlocalmemory@3.6.23
matchedPath = ide/hooks/memory-profile-skill.js
matchedIdentity = npm:c3VwZXJsb2NhbG1lbW9yeQ:3.6.23
similarity = 1.000
summary = normalized source hash matched finalized malicious source
High
Known Malware Source Similarity
Source file is highly similar to a previously finalized malicious package; route for source-aware review.
Findings
7 High5 Medium6 Low
HighInstall Time Lifecycle Scriptspackage.json
HighSemantic Analysis Limitedscripts/postinstall-interactive.js#virtual:normalized:round1
HighKnown Malware Source Similarityide/hooks/memory-list-skill.js
HighKnown Malware Source Similarityide/hooks/memory-profile-skill.js
HighKnown Malware Source Similarityide/hooks/memory-recall-skill.js
HighKnown Malware Source Similarityide/hooks/memory-remember-skill.js
HighKnown Malware Source Similarityide/hooks/memory-reset-skill.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumDynamic Requireide/hooks/memory-profile-skill.js
MediumEnvironment Vars
MediumShips Build Helperide/completions/slm.zsh
Affected versions and remediation
This report applies to superlocalmemory@4.1.16.
See all versions of superlocalmemory for other recorded verdicts.
- Review the evidence and your use of superlocalmemory@4.1.16 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.