@cachly-dev/mcp-server@0.10.137
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AI Security Review
scanned 1mo ago · by lpm-firewall-aiThis is not malicious install-time behavior because postinstall only prints instructions. The explicit setup and token-forwarding capabilities nevertheless create a concrete, non-blocking agent-extension and credential-exposure risk.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
The user runs autopilot or init, then an affected editor event or git commit occurs.
Impact
A configured agent can execute a future package release; a service token may be sent to an unallowlisted backend endpoint.
Mechanism
Agent-hook installation, latest-version execution, and unrestricted credential forwarding.
AI rationale
This is not malicious install-time behavior because postinstall only prints instructions. The explicit setup and token-forwarding capabilities nevertheless create a concrete, non-blocking agent-extension and credential-exposure risk.
Evidence
dist/src/index.jsdist/src/ambient-hooks.jsdist/src/cls-hook.js.claude/settings.json.claude/hooks/cachly-ambient-session-start.mjs.claude/hooks/cachly-ambient-prompt-submit.mjs.claude/hooks/cachly-ambient-pre-tool.mjs.claude/hooks/cachly-ambient-stop.mjs.git/hooks/post-commit~/.claude/mcp.json~/.cursor/mcp.json~/.codeium/windsurf/mcp_config.json
Network endpoints2
api.cachly.devCACHLY_API_URL
Decision evidence
public snapshotAI called this Suspicious at 87.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The install hook tells the user to run the separate autopilot command; it does not run configuration itself.
- The autopilot and init paths write MCP configuration and Claude hook files that invoke this package through npx at latest.
- The generated post-commit hook collects commit metadata and runs the package silently; its runtime code forwards bearer credentials to the configurable CACHLY_API_URL without a visible destination allowlist.
Evidence against
- package.json has no dependency on its own package name.
- The postinstall source only prints guidance and does not write files, run a shell, or make a request.
Behavioral surface
ChildProcessEnvironmentVarsEvalFilesystemNetwork
HighEntropyStringsMinifiedUrlStrings
Source & flagged code
13 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 unpkgdist/src/bench/cachly-bench.jsView file
1import{EventEmitter as F}from"node:events";import{keywordSearch as $}from"../search.js";import{rerankByQuality as q}from"../rerank.js";import{BENCH_LESSONS as B,BENCH_QUERIES as k}...
L2: `)}const j=(()=>{try{return import.meta.url===`file://${process.argv[1]}`||process.argv[1]?.endsWith("cachly-bench.ts")||process.argv[1]?.endsWith("cachly-bench.js")}catch{return!1...
High
Child Process
Findings
1 Critical10 High4 Medium6 Low
CriticalPrevious Version Dangerous Deltadist/src/index.js
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processdist/src/bench/cachly-bench.js
HighSame File Env Network Executiondist/src/index.js
HighCredential Exfiltrationdist/src/index.js
HighCommand Output Exfiltrationdist/src/index.js
HighSandbox Evasion Gated Capabilitydist/src/index.js
HighTrigger Reachable Credential Exfiltrationdist/src/index.js
HighTrigger Reachable Command Output Exfiltrationdist/src/index.js
HighRuntime Package Installdist/src/cls-hook.js
HighSemantic Analysis Limiteddist/src/doctor.js#virtual:normalized:round1
Affected versions and remediation
This report applies to @cachly-dev/mcp-server@0.10.137.
See all versions of @cachly-dev/mcp-server for other recorded verdicts.
- Review the evidence and your use of @cachly-dev/mcp-server@0.10.137 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: .
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