registry / Data exfiltration / @kryptosai/mcp-observatory / 1.45.5

@kryptosai/mcp-observatory@1.45.5

MCP security scanner and CI gate. Test, secure, and monitor MCP servers with attack simulation, schema drift detection, health scoring, and SARIF before agents depend on them.

AI Security Review

scanned 1mo ago · by lpm-firewall-ai

The package implements a remote-controlled opt-out telemetry path that collects and transmits identifying host and repository data on routine CLI use. A displayed notice and a safer built-in default do not prevent a vendor response from enabling this collection without consent. Product guard normalized a non-low false-positive publish_block request to warn-only suspicious.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

Run any CLI command other than the telemetry command.

Impact

Discloses persistent device identifiers, hostname, Git email, Git origin, repository metadata, and command metadata to a vendor-controlled endpoint.

Mechanism

Remote-policy-controlled telemetry collection and HTTP event delivery.

AI rationale

Evidence

package.jsondist/src/cli.jsdist/src/telemetry.js~/.mcp-observatory/config.json~/.mcp-observatory/telemetry-queue.json

Network endpoints1

mcp-observatory-telemetry.kryptosai.workers.dev/v1/events

Decision evidence

public snapshot

AI called this Suspicious at 93.0% confidence as Malware with medium false-positive risk.

Evidence for warning

The manifest runs a postinstall program automatically.
Every normal CLI command initializes telemetry and records a command event.
A vendor-fetched policy can change an unset preference to enabled without affirmative user consent.
Telemetry collects the hostname, Git email, and Git origin URL.
Events include persistent machine identifiers and collected Git and host identity, then are posted to the vendor endpoint.

Evidence against

The built-in default policy is prior consent, and the CLI prints a telemetry notice.
The postinstall workflow write is gated by an explicit project configuration setting.
The reviewed scanner, reporting, and target-execution features are consistent with the stated MCP security-tool purpose.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStrings

Source & flagged code

10 flagged

package.jsonView file

Lines 83-123json

83 "docs/target-contribution-guide.md",

84 "docs/target-gallery.md",

85 "docs/target-registry.md",

86 "docs/tool-call-receipts.md",

87 "examples/demo-mcp-server.mjs",

88 "examples/insecure-mcp-server",

89 "scripts/postinstall.mjs",

90 "schemas"

91 ],

92 "scripts": {

93 "build": "tsc -p tsconfig.json",

94 "cli": "tsx src/cli.ts",

95 "dashboard:build": "tsx scripts/build-dashboard.ts",

96 "dashboard:validate": "node scripts/validate-dashboard.mjs",

97 "integration:real": "tsx scripts/run-real-server-matrix.ts",

98 "evaluate:permission-delta": "tsx scripts/evaluate-permission-delta-conformance.ts",

99 "evaluate:permission-delta:mcp-diff": "tsx scripts/run-mcp-diff-baseline.ts",

100 "safety-index": "tsx scripts/run-safety-index.ts",

101 "lint": "eslint .",

102 "prepack": "npm run build",

103 "postinstall": "node scripts/postinstall.mjs",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L103

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L103

104 "proof:refresh": "tsx scripts/refresh-proof-artifacts.ts",

105 "release:prep": "node scripts/release.mjs",

106 "certification:pr-body": "tsx scripts/print-certification-pr-body.ts",

107 "typecheck": "tsc --noEmit -p tsconfig.json",

108 "test": "vitest run",

109 "test:permission-delta-model": "vitest run tests/permission-delta-model.test.ts",

110 "test:coverage": "vitest run --coverage",

111 "validate:artifacts": "tsx scripts/validate-artifacts.ts",

112 "verify:packed-install": "node scripts/verify-packed-install.mjs",

113 "smoke": "npm run cli -- run --target tests/fixtures/sample-target-config.json && npm run cli -- diff tests/fixtures/sample-run-a.json tests/fixtures/sample-run-b.json",

114 "boundary:check": "node scripts/check-repository-boundary.mjs"

115 },

116 "keywords": [

117 "mcp",

118 "mcp-server",

119 "model-context-protocol",

120 "ai-agent",

121 "agent-security",

122 "ai-supply-chain",

123 "ai-tools",

dist/src/ci-issue.jsView file

Lines 1-21javascript

1import { execFile } from "node:child_process";

2import { mkdtemp, rm, writeFile } from "node:fs/promises";

High

Child Process

Package source references child process execution.

dist/src/ci-issue.jsView on unpkg · L1

3import { tmpdir } from "node:os";

dist/src/commands/demo.jsView file

Lines 1-31javascript

1import { createRequire } from "node:module";

2import path from "node:path";

3import { fileURLToPath } from "node:url";

4import { runTarget } from "../index.js";

dist/src/commands/test.jsView file

Lines 222-262javascript

222 }

223 else {

224 await maybeConvertPassingCheckToCi({

225 artifact,

226 target,

227 targetPath: options.target,

228 setupCi: conversionFlags.setupCi,

229 yes: conversionFlags.yes,

230

dist/src/checks/skill-scan.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 7

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

dist/src/checks/skill-scan.js#virtual:normalized:round1View on unpkg

dist/src/commands/helpers.jsView file

•matchType = normalized_sha256 matchedPackage = @kryptosai/mcp-observatory@1.36.4 matchedPath = dist/src/commands/helpers.js matchedIdentity = npm:[redacted]:1.36.4 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.

dist/src/commands/helpers.jsView on unpkg

dist/src/risk-graph.jsView file

•matchType = normalized_sha256 matchedPackage = @kryptosai/mcp-observatory@1.36.4 matchedPath = dist/src/risk-graph.js matchedIdentity = npm:[redacted]:1.36.4 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.

dist/src/risk-graph.jsView on unpkg

dist/src/utils/failure-diagnosis.jsView file

•matchType = normalized_sha256 matchedPackage = @kryptosai/mcp-observatory@1.36.4 matchedPath = dist/src/utils/failure-diagnosis.js matchedIdentity = npm:[redacted]:1.36.4 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.

dist/src/utils/failure-diagnosis.jsView on unpkg

dist/src/checks/skill-scan.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @kryptosai/mcp-observatory@1.44.3 matchedIdentity = npm:[redacted]:1.44.3 similarity = 0.862 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/src/checks/skill-scan.jsView on unpkg

Source & flagged code

10 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

dist/src/ci-issue.jsView file

1import { execFile } from "node:child_process"; L2: import { mkdtemp, rm, writeFile } from "node:fs/promises";

High

Child Process

Package source references child process execution.

dist/src/ci-issue.jsView on unpkg · L1

Findings

1 Critical8 High5 Medium4 Low

CriticalPrevious Version Dangerous Deltadist/src/checks/skill-scan.js

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processdist/src/ci-issue.js

HighShell

HighRuntime Package Installdist/src/commands/test.js

HighSemantic Analysis Limiteddist/src/checks/skill-scan.js#virtual:normalized:round1

HighKnown Malware Source Similaritydist/src/commands/helpers.js

HighKnown Malware Source Similaritydist/src/risk-graph.js

HighKnown Malware Source Similaritydist/src/utils/failure-diagnosis.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requiredist/src/commands/demo.js

Affected versions and remediation

This report applies to @kryptosai/mcp-observatory@1.45.5.

See all versions of @kryptosai/mcp-observatory for other recorded verdicts.

Review the evidence and your use of @kryptosai/mcp-observatory@1.45.5 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: 2026-09-14 13:55:49.700Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Runtime surface

Behavioral surface

Source & flagged code