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Supply-chain threat detection & response for npm & PyPI/Python
We found this by crawling public sources and nobody has attested to it. That is how most of the registry gets here, and it is not a mark against the artifact — it only means no authenticated act of publication is on record. An artifact can be the vendor's own and still appear here.
947 critical findings reported by cisco-skill-scanner, agent-audit-kit, 173 of them in the installed artifact. The composite score alone does not reflect this — read the per-scanner reports below.
This artifact ships from 2 sources and their verdicts differ. The worst is github (Flagged). Installing from a cleaner source does not mean the others are safe — check the source you actually install from.
github: https://github.com/dnszlsk/muad-dib, 4940 findings
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- muaddib-scanner
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
6 of 11 scanners examined this package. The rest do not apply to it — language, ecosystem and packaging decide which analyzers can say anything, and a scanner that cannot examine an artifact reports nothing rather than passing it.
v1.4.0
Incomplete run
0 findings · 0.8s
v2.0.11
3228 findings · 44.5s
v0.3.74
235 findings · 47.0s
v0.1.0
13 findings · 23.5s
v0.1.0
25 findings · 23.6s
v0.1.0
0 findings · 29.6s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.2s
No report in this scan: govulncheck, osv-scanner, trivy, trivy_image.
1 scan on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 22, 2026 | Scan Halted | — | agentshield ·!: incompletecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source: complete | rejected |
Findings in files this artifact installs stand as reported; a model re-read the rest and said which ones it believes are false positives. This is a second opinion published beside the evidence, not a correction to it: the per-scanner reports above are unchanged, every dismissed finding is still listed there at its original severity, and the score and the Flagged badge are computed from those raw severities alone. Nothing below moved them.
Out of 3,501 findings across every scanner that examined this package. 773 of 947 findings rated critical by their scanner were among the dismissals.
Not reviewed is not the same as clean. Those 189 findings stand exactly as their scanners reported them, at full severity, as they would have without this review.
Two keys had to turn. The model had to name a reason from a fixed list of six, and a deterministic check of ours — over which files this artifact actually installs — had to independently agree. Anything it could not corroborate is in “not reviewed” above, at full severity.
2,507 Test or fixture file — The match is in a test or fixture. Our own check confirmed the file is not part of what gets installed.
Rules: COMMAND_INJECTION_JS_CHILD_PROCESS, COMMAND_INJECTION_EVAL, COMMAND_INJECTION_JS_FUNCTION_CONSTRUCTOR and 32 more · Files: /repo/tests/fuzz-test.js, /repo/tests/ground-truth/samples/async-pipeline-builder/lib/worker.js, /repo/tests/ground-truth/samples/build-scripts-utils/lib/worker.js and 482 more · reported by cisco-skill-scanner, agent-audit-kit
213 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: COMMAND_INJECTION_EVAL, COMPOUND_FIND_EXEC, PIPELINE_TAINT_FLOW and 10 more · Files: /repo/docs/vendor/highlight.min.js, /repo/tests/audit-2026-05/dataflow-findings.test.js, /repo/tests/ground-truth/samples/contagious-interview/scripts/build.js and 91 more · reported by cisco-skill-scanner, nerlo-install-instruction
31 Agent instruction file — The match is in a file that instructs an AI coding agent — a CLAUDE.md or similar. It is documentation of intent, and our own check confirmed it is not part of what gets installed.
Rules: YARA_prompt_injection_generic, AAK-AGENT-003, AAK-AGENT-005 and 1 more · Files: /repo/tests/samples/red-team-2026/2-promptmink/CLAUDE.md, /repo/tests/samples/red-team-2026/2-promptmink/SKILL.md, CLAUDE.md · reported by cisco-skill-scanner, agent-audit-kit
These findings are in files this artifact installs and are not placeholder values. No false-positive basis can be corroborated for such a finding, so this review never dismisses one; they were not sent to the model and stand at their scanner's severity.
240 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/docker/mock-network.js, /repo/scripts/ab-test-shadow.js, /repo/scripts/analyze-fp-clusters.js and 79 more · reported by cisco-skill-scanner
77 COMMAND_INJECTION_EVAL
Files: /repo/docker/preload.js, /repo/src/ml/llm-detective.js, /repo/src/response/playbooks.js and 22 more · reported by cisco-skill-scanner
47 DATA_EXFIL_JS_NETWORK
Files: /repo/docker/mock-network.js, /repo/scripts/backtest-mcp-3tier.js, /repo/scripts/git-vs-npm-diff.js and 26 more · reported by cisco-skill-scanner
46 COMMAND_INJECTION_JS_CHILD_PROCESS
Files: /repo/bin/muaddib.js, /repo/docker/mock-network.js, /repo/docker/preload.js and 24 more · reported by cisco-skill-scanner
21 COMMAND_INJECTION_JS_FUNCTION_CONSTRUCTOR
Files: /repo/src/monitor/classify.js, /repo/src/response/playbooks.js, /repo/src/scanner/ast-detectors/handle-call-expression.js and 7 more · reported by cisco-skill-scanner
187 The model gave no reason we were willing to publish, and a verdict without one is not usable evidence.
Rules: DATA_EXFIL_JS_NETWORK · Files: /repo/tests/audit-2026-05/dataflow-findings.test.js, /repo/tests/audit-2026-05/security-audit-replay/2-muaddib-ignore/index.js, /repo/tests/audit-2026-05/security-audit-replay/3-mjs-extension/stealer.mjs and 61 more · reported by cisco-skill-scanner
2 The model did not answer for these findings.
Rules: COMMAND_INJECTION_JS_FUNCTION_CONSTRUCTOR, YARA_tool_chaining_abuse_generic · Files: /repo/tests/scanner/ast.test.js, /repo/tests/scanner/sensitive-files-coverage.test.js · reported by cisco-skill-scanner
Artifact contains critical shell execution and credential access risks.
The artifact exhibits extensive capabilities for shell execution through command injection, JavaScript child processes, and eval functions, notably in `bin/muaddib.js`, `docker/mock-network.js`, and `hooks/husky.js`. It also contains hardcoded credentials, including AWS keys and GitHub tokens, found in `docker/sandbox-runner.sh` and `src/sandbox/index.js`. Further, the artifact includes path traversal vulnerabilities in `src/shared/registry-auth.js` and indications of system modification capabilities.
Concern level assessed by the review: Critical. This is the review's scale, not the registry badge.
Reviewed by gemini-2.5-flash. The model sees the findings, not your code, and cannot change a score.
13 AAK-SECRET-004
Files: docker/mock-network.js, docker/sandbox-runner.sh, scripts/sample-npm-random.js and 5 more · reported by agent-audit-kit
12 opt.nerlo-rules.nerlo-install-pipe-to-shell
Files: /repo/ARCHITECTURE.md, /repo/CHANGELOG.md, /repo/README.md and 2 more · reported by nerlo-install-instruction
11 PIPELINE_TAINT_FLOW
Files: /repo/CHANGELOG.md, /repo/SKILL.md, /repo/security-review-2026-07-16.md and 2 more · reported by cisco-skill-scanner
10 opt.nerlo-rules.nerlo-dynamic-exec
Files: /repo/docker/mock-network.js, /repo/hooks/husky.js, /repo/scripts/backtest-mcp-3tier.js and 4 more · reported by nerlo-behavioral
8 OBFUSCATION_BASE64_LARGE
Files: /repo/ARCHITECTURE.md, /repo/SKILL.md, /repo/src/rules/index.js and 2 more · reported by cisco-skill-scanner
8 YARA_script_injection_generic
Files: /repo/audit-data/all-review-results.json, /repo/src/scoring.js · reported by cisco-skill-scanner
5 HIDDEN_DATA_FILE
Files: /repo/vscode-extension/.vscodeignore, /repo/.pre-commit-hooks.yaml, /repo/src/ioc/data/.ossf-tree-sha and 1 more · reported by cisco-skill-scanner
4 TOOL_ABUSE_SYSTEM_MODIFICATION
Files: /repo/scripts/deploy.sh, /repo/docker/sandbox-runner.sh · reported by cisco-skill-scanner
3 AAK-SECRET-003
Files: docker/sandbox-runner.sh, src/sandbox/index.js, src/scanner/ast-detectors/anti-evasion.js · reported by agent-audit-kit
3 LOW_ANALYZABILITY
Files: /repo, /repo/src/vendor, /repo/vscode-extension · reported by cisco-skill-scanner
3 MANIFEST_MISSING_LICENSE
Files: /repo/SKILL.md, /repo/vscode-extension/SKILL.md, /repo/src/vendor/SKILL.md · reported by cisco-skill-scanner
3 opt.nerlo-rules.nerlo-install-reverse-shell-directive
Files: /repo/ARCHITECTURE.md, /repo/security-review-2026-07-16.md · reported by nerlo-install-instruction
3 opt.nerlo-rules.nerlo-install-shell-inline-command
Files: /repo/SECURITY.md, /repo/scoring-fix-candidates-2026-07-16.md, /repo/security-review-2026-07-16.md · reported by nerlo-install-instruction
3 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/vscode-extension/SKILL.md, /repo/src/vendor/SKILL.md · reported by cisco-skill-scanner
3 UNANALYZABLE_BINARY
Files: /repo/src/vendor/tree-sitter-python.wasm, /repo/data/alerts-sample.tar.gz · reported by cisco-skill-scanner
3 YARA_code_execution_generic
Files: /repo/src/scanner/module-graph/detect-cross-file.js, /repo/src/scanner/paranoid.js, /repo/sbom.json · reported by cisco-skill-scanner
3 YARA_command_injection_generic
Files: /repo/security-review-2026-07-16.md, /repo/src/scanner/shell.js · reported by cisco-skill-scanner
3 YARA_credential_harvesting_generic
Files: /repo/src/scanner/temporal-ast-diff.js, /repo/src/scanner/ai-config.js, /repo/src/scanner/module-graph/annotate-tainted.js · reported by cisco-skill-scanner
2 AAK-LEGAL-001
Files: package.json, vscode-extension/package.json · reported by agent-audit-kit
2 AAK-SECRET-008
Files: docker/sandbox-runner.sh, src/sandbox/index.js · reported by agent-audit-kit
2 BINARY_FILE_DETECTED
Files: /repo/src/vendor/tree-sitter-python.wasm · reported by cisco-skill-scanner
2 opt.nerlo-rules.nerlo-install-decode-then-run
Files: /repo/ARCHITECTURE.md, /repo/SECURITY.md · reported by nerlo-install-instruction
2 opt.nerlo-rules.nerlo-js-secret-to-network-egress
Files: /repo/src/ml/llm-detective.js, /repo/src/scanner/npm-registry.js · reported by nerlo-behavioral
2 SECRET_AWS_KEY
Files: /repo/docker/sandbox-runner.sh, /repo/src/sandbox/index.js · reported by cisco-skill-scanner
2 SECRET_GITHUB_TOKEN
Files: /repo/docker/sandbox-runner.sh, /repo/src/sandbox/index.js · reported by cisco-skill-scanner
1 AAK-HEALTHCARE-AI-004
Files: CHANGELOG.md · reported by agent-audit-kit
1 AAK-IPI-WILD-CORPUS-001
Files: src/ioc/data/iocs-compact.json · reported by agent-audit-kit
1 AAK-MCP-AUTH-PATHTRAVERSAL-001
Files: src/shared/registry-auth.js · reported by agent-audit-kit
1 AAK-OAUTH-008
Files: sbom.json · reported by agent-audit-kit
1 ARCHIVE_FILE_DETECTED
Files: /repo/data/alerts-sample.tar.gz · reported by cisco-skill-scanner
1 COMPOUND_FIND_EXEC
Files: /repo/scripts/archive-cleanup.sh · reported by cisco-skill-scanner
1 DATA_EXFIL_NETWORK_REQUESTS
Files: /repo/ml-retrain/auto-labeler/ghsa_checker.py · reported by cisco-skill-scanner
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 FILE_MAGIC_MISMATCH
Files: /repo/tools/requirements-ml.txt · reported by cisco-skill-scanner
1 OBFUSCATION_XOR_ENCODING
Files: /repo/src/scanner/anti-forensic.js · reported by cisco-skill-scanner
1 opt.nerlo-rules.nerlo-hardcoded-external-egress
Files: /repo/src/ml/llm-detective.js · reported by nerlo-behavioral
1 OVERSIZED_FILE
Files: /repo/src/ioc/data/iocs-compact.json · reported by cisco-skill-scanner
1 RESOURCE_ABUSE_INFINITE_LOOP
Files: /repo/ml-retrain/auto-labeler/npm_checker.py · reported by cisco-skill-scanner
1 TOOL_ABUSE_UNDECLARED_NETWORK
Files: /repo/repo/ARCHITECTURE.md · reported by cisco-skill-scanner
1 YARA_tool_chaining_abuse_generic
Files: /repo/src/ml/feature-extractor.js · reported by cisco-skill-scanner
Showing 25 of 229; the rest are in the per-scanner reports above.