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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.
72 critical findings reported by cisco-skill-scanner, agent-audit-kit, 17 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/pfblockerng/pfblockerng, 2551 findings
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- pfblockerng
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
18 findings · 0.5s
v2.0.11
2249 findings · 87.4s
v0.3.74
42 findings · 107.4s
v0.1.0
1 finding · 13.4s
v0.1.0
241 findings · 13.5s
v0.1.0
1 finding · 21.2s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
No report in this scan: govulncheck, osv-scanner, trivy, trivy_image.
2 scans on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Sep 3, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source: complete | rejected |
| Aug 10, 2026 | Scan Halted | — | agentshield ·!: incompletecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicable | 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 2,552 findings across every scanner that examined this package. 51 of 72 findings rated critical by their scanner were among the dismissals.
Not reviewed is not the same as clean. Those 729 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.
353 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_EVAL, YARA_sql_injection_generic, YARA_command_injection_generic and 13 more · Files: /repo/tests/smoke/helpers.py, /repo/tests/smoke/test_hook_stream_visibility.py, /repo/tests/smoke/test_smoke_714_asn_geoip.py and 171 more · reported by cisco-skill-scanner, agent-audit-kit
23 CI or editor configuration — The match is in build, CI or editor configuration, confirmed by our own check to be outside the installed artifact.
Rules: AAK-GHA-IMMUTABLE-001, FILE_MAGIC_MISMATCH · Files: .github/workflows/version-tracker.yml, .github/workflows/test.yml, .github/workflows/module-durations.yml and 13 more · reported by agent-audit-kit, cisco-skill-scanner
2 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: AAK-AGENT-003 · Files: AGENTS.md, CLAUDE.md · reported by agent-audit-kit
1 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: opt.nerlo-rules.nerlo-install-pipe-to-shell · Files: /repo/docs/misc/architecture-notes.md · reported by nerlo-install-instruction
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.
821 FILE_MAGIC_MISMATCH
Files: /repo/legacy/ADR_RESULTS/01_Results.txt, /repo/legacy/ADRs/ADR_03_Persistent_IO/RESULTS/01_Results.txt, /repo/legacy/ADRs/ADR_04_VM_Smoke_Tests/RESULTS/01_Results.txt and 271 more · reported by cisco-skill-scanner
189 opt.nerlo-rules.nerlo-install-run-bundled-artifact
Files: /repo/.agents/context/repository-intelligence.md, /repo/.agents/context/smoke.md, /repo/.agents/policy/coding.md and 86 more · reported by nerlo-install-instruction
91 MANIFEST_MISSING_LICENSE
Files: /repo/.agents/skills/release-with-changelog/SKILL.md, /repo/.agents/skills/coderabbit/SKILL.md, /repo/.agents/skills/debug/SKILL.md and 88 more · reported by cisco-skill-scanner
86 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/.omp/SKILL.md, /repo/scripts/SKILL.md and 83 more · reported by cisco-skill-scanner
74 MANIFEST_INVALID_NAME
Files: /repo/legacy/ADRs/ADR_44_MIME_Normalization/RESULTS/SKILL.md, /repo/legacy/ADRs/ADR_45_Structural_Integrity_Tests/RESULTS/SKILL.md, /repo/legacy/ADRs/ADR_40_Content_Addressed_Alias_Updates/RESULTS/SKILL.md and 71 more
725 The review budget for this scan was already spent before these findings were reached.
Rules: UNANALYZABLE_BINARY, ARCHIVE_FILE_DETECTED, GLOB_HIDDEN_FILE_TARGETING and 15 more · Files: /repo/tests/fixtures/feed_corpus/samples/PhishingArmy_agr.bin, /repo/tests/fixtures/feed_corpus/samples/EasyList_Greek.bin, /repo/tests/fixtures/feed_corpus/samples/BlockListDE_Brute6.bin and 255 more · reported by cisco-skill-scanner, nerlo-install-instruction
4 The model did not answer for these findings.
Rules: AAK-INDIA-PII-001, PATH_TRAVERSAL_OPEN · Files: tests/test_ui_screenshot_redaction.py, /repo/tests/test_adr62_byte_identity_corpus.py, /repo/tests/test_adr62_parity_oracle.py · reported by agent-audit-kit, cisco-skill-scanner
Critical command injection and path traversal vulnerabilities identified.
The artifact contains critical command injection vulnerabilities in Python scripts and JavaScript files, allowing for shell execution. Path traversal vulnerabilities are also present in Python scripts, which could lead to unauthorized file access. Additionally, a high-severity finding indicates potential secret exposure to network egress.
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.
51 HIDDEN_DATA_FILE
Files: /repo/.config/wt.toml, /repo/.agents/context/smoke.md, /repo/.agents/context/repository-intelligence.md and 48 more · reported by cisco-skill-scanner
36 DATA_EXFIL_NETWORK_REQUESTS
Files: /repo/legacy/archive/redmine_to_github.py, /repo/scripts/build-dep-pkg-portable.py, /repo/scripts/build-pkg-portable.py and 8 more · reported by cisco-skill-scanner
25 opt.nerlo-rules.nerlo-install-shell-inline-command
Files: /repo/.agents/context/smoke.md, /repo/legacy/ADRs/ADR_12_Update_Hooks/ADR.md, /repo/legacy/ADRs/ADR_12_Update_Hooks/RESULTS/01_Results.txt and 9 more · reported by nerlo-install-instruction
6 opt.nerlo-rules.nerlo-install-pipe-to-shell
Files: /repo/.agents/policy/coderabbit-misses.md, /repo/legacy/ADRs/ADR_39_Meta_Package_Distribution/RESULTS/02_Results.txt, /repo/scripts/install.sh · reported by nerlo-install-instruction
6 YARA_command_injection_generic
Files: /repo/legacy/ADRs/ADR_36_DNS_Redirection/RESULTS/03_Results.txt, /repo/legacy/ADRs/ADR_37_DoT_DoQ_Block/RESULTS/03_Results.txt · reported by cisco-skill-scanner
4 COMMAND_INJECTION_EVAL
Files: /repo/scripts/check_appliance_python.py, /repo/scripts/check_reentry_bounds.py · reported by cisco-skill-scanner
4 COMMAND_INJECTION_JS_FUNCTION_CONSTRUCTOR
Files: /repo/src/usr/local/www/widgets/javascript/pfblockerng.js · reported by cisco-skill-scanner
3 AAK-IPI-WILD-CORPUS-001
Files: src/usr/local/pkg/pfblockerng/pfb_unbound.py, legacy/ADRs/ADR_17_Pkg_Repository/RESULTS/05_Results.txt, legacy/ADRs/ADR_27_Release_Rollback_And_EOL_Routing/RESULTS/03_Results.txt · reported by agent-audit-kit
3 AAK-LEGAL-002
Files: tools/webassets/package.json, tools/webassets/lezer-pfb-regex-list/package.json, tools/webassets/lezer-regexp/package.json · reported by agent-audit-kit
3 LOW_ANALYZABILITY
Files: /repo/tools/webassets/lezer-pfb-regex-list, /repo/tools/webassets/lezer-regexp, /repo/src/usr/local/www/pfblockerng/vendor/codemirror · reported by cisco-skill-scanner
2 COMPOUND_EXTRACT_EXECUTE
Files: /repo/scripts/smoke-on-box.sh · reported by cisco-skill-scanner
2 COMPOUND_FETCH_EXECUTE
Files: /repo/scripts/agent/setup-agent-tools.sh · reported by cisco-skill-scanner
2 DATA_EXFIL_JS_NETWORK
Files: /repo/tools/webassets/cm-lint.js · reported by cisco-skill-scanner
2 EXCESSIVE_FILE_COUNT
Files: /repo/., /repo/legacy/ADRs/. · reported by cisco-skill-scanner
2 PATH_TRAVERSAL_OPEN
Files: /repo/legacy/benchmarks/spike_adr07_regex.py · reported by cisco-skill-scanner
2 RESOURCE_ABUSE_INFINITE_LOOP
Files: /repo/scripts/build-source-archive.py · reported by cisco-skill-scanner
2 TOOL_ABUSE_SYSTEM_PACKAGE_INSTALL
Files: /repo/scripts/agent/setup-agent-tools.sh · reported by cisco-skill-scanner
2 TOOL_ABUSE_UNDECLARED_NETWORK
Files: /repo/scripts/repo/scripts/README.md, /repo/legacy/archive/repo/legacy/archive/README.md · reported by cisco-skill-scanner
1 AAK-HEALTHCARE-AI-004
Files: legacy/ADRs/ADR_62_DNSBL_Unified_Line_Parsing/ADR.md · reported by agent-audit-kit
1 AAK-MCP-AUTH-PATHTRAVERSAL-001
Files: scripts/check_context_budget.py · reported by agent-audit-kit
1 AAK-SECRET-004
Files: legacy/archive/redmine_to_github.py · reported by agent-audit-kit
1 HIDDEN_EXECUTABLE_SCRIPT
Files: /repo/.githooks/check-commit-identity.sh · reported by cisco-skill-scanner
1 hooks-chained-commands-0
Files: settings.json · reported by agentshield
1 hooks-logging-disabled-106
Files: settings.json · reported by agentshield
1 hooks-logging-disabled-2425
Files: hooks/session-branch-sync.sh · reported by agentshield
1 hooks-logging-disabled-3221
Files: hooks/session-branch-sync.sh · reported by agentshield
1 hooks-logging-disabled-3690
Files: hooks/session-branch-sync.sh · reported by agentshield
1 hooks-logging-disabled-3891
Files: hooks/session-branch-sync.sh · reported by agentshield
1 hooks-logging-disabled-3957
Files: hooks/session-branch-sync.sh · reported by agentshield
1 hooks-logging-disabled-5852
Files: hooks/session-branch-sync.sh · reported by agentshield
1 hooks-logging-disabled-6243
Files: hooks/session-branch-sync.sh · reported by agentshield
1 hooks-logging-disabled-7058
Files: hooks/session-branch-sync.sh · reported by agentshield
1 hooks-no-stop-hooks
Files: settings.json · reported by agentshield
1 hooks-silent-fail-122
Files: settings.json · reported by agentshield
1 hooks-silent-fail-65
Files: settings.json · reported by agentshield
1 nerlo-malware-obfuscated_blob
Files: github_release:pfBlockerNG-3.3.7.tar.gz.extracted/src/usr/local/www/pfblockerng/www/dnsbl_default.php · reported by nerlo-malware
1 opt.nerlo-rules.nerlo-install-fetch-raw-then-run
Files: /repo/legacy/ADRs/ADR_39_Meta_Package_Distribution/RESULTS/02_Results.txt · reported by nerlo-install-instruction
1 opt.nerlo-rules.nerlo-py-secret-to-network-egress
Files: /repo/scripts/misc/update_artifact_action_majors.py · reported by nerlo-behavioral
1 OVERSIZED_FILE
Files: /repo/graphify-out/graph.json · reported by cisco-skill-scanner
1 permissions-missing-deny->-/dev/
Files: settings.json · reported by agentshield
1 permissions-missing-deny-chmod-777
Files: settings.json · reported by agentshield
1 permissions-missing-deny-rm--rf
Files: settings.json · reported by agentshield
1 permissions-missing-deny-ssh
Files: settings.json · reported by agentshield
1 permissions-missing-deny-sudo
Files: settings.json · reported by agentshield
Showing 25 of 47; the rest are in the per-scanner reports above.