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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.
9 critical findings reported by cisco-skill-scanner, trivy, osv-scanner. The composite score alone does not reflect this — read the per-scanner reports below.
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- slack-mcp-server
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
8 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.
v2.0.11
10 findings · 8.2s
v0.3.74
13 findings · 3.1s
v0.2.0
0 findings · 6.9s
v0.2.0
0 findings · 6.9s
vv0.3.2
Incomplete run
0 findings · 3.5s
v0.71.0
29 findings · 0.4s
v2.3.8
31 findings · 1.1s
vv1.6.0
Incomplete run
0 findings · 2.6s
v1.4.0
None of the entry points this scanner reads were found in this artifact. What each scanner covers
0 findings · 0.2s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 7.4s
v0.71.0
No container image was published for this artifact. What each scanner covers
0 findings · 0.0s
3 scans on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Sep 7, 2026 | Flagged36 | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·!: incompletenerlo-multi-source ·n/a: not applicabletrivy: completeosv-scanner: completetrivy_image ·n/a: not applicablegovulncheck ·!: incomplete | completed |
| Sep 6, 2026 | Flagged36 | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·!: incompletenerlo-multi-source ·n/a: not applicabletrivy: completeosv-scanner: completetrivy_image ·n/a: not applicablegovulncheck ·!: incomplete | completed |
| Aug 2, 2026 | Flagged36 | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completenerlo-multi-source ·n/a: not applicabletrivy: completeosv-scanner: completetrivy_image ·n/a: not applicable | completed |
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 83 findings across every scanner that examined this package. None of the 9 findings rated critical by their scanner were dismissed.
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.
5 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 · Files: .github/workflows/security-trivy.yaml, .github/workflows/release-image.yaml, .github/workflows/release.yaml · reported by agent-audit-kit
2 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: SOCIAL_ENG_VAGUE_DESCRIPTION, MANIFEST_MISSING_LICENSE · Files: /repo/docs/SKILL.md · reported by cisco-skill-scanner
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.
6 AAK-LEGAL-002
Files: npm/slack-mcp-server-windows-arm64/package.json, npm/slack-mcp-server-darwin-arm64/package.json, npm/slack-mcp-server-linux-amd64/package.json and 3 more · reported by agent-audit-kit
2 AAK-MCP-HTTP-NOAUTH-SERVER-001
Files: docker-compose.dev.yml, docker-compose.toolkit.yml · reported by agent-audit-kit
2 GO-2026-5932
Files: go.mod, /repo/go.mod · reported by trivy, osv-scanner
2 MANIFEST_MISSING_LICENSE
Files: /repo/SKILL.md, /repo/pkg/provider/SKILL.md · reported by cisco-skill-scanner
2 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/pkg/provider/SKILL.md · reported by cisco-skill-scanner
2 YARA_prompt_injection_unicode_steganography
The model could have called any of these a false positive and did not.
1 CVE-2026-39821
Files: go.mod · reported by trivy
Critical command injection and dependency vulnerabilities
The artifact contains a critical command injection vulnerability in `npm/slack-mcp-server/bin/index.js` that could lead to shell execution. Additionally, several critical vulnerabilities (e.g., GO-2026-5021, CVE-2026-56854) are present in Go dependencies listed in `go.mod`. High severity findings indicate potential unauthenticated HTTP server access in `docker-compose.dev.yml` and `docker-compose.toolkit.yml`, alongside numerous other high severity dependency vulnerabilities. These findings collectively point to significant risks including remote code execution and potential unauthorized network exposure.
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.
Files: /repo/images/feature-2.gif · reported by cisco-skill-scanner
1 COMMAND_INJECTION_JS_CHILD_PROCESS
Files: /repo/npm/slack-mcp-server/bin/index.js · reported by cisco-skill-scanner
1 CVE-2026-25680
Files: go.mod · reported by trivy
1 CVE-2026-25681
Files: go.mod · reported by trivy
1 CVE-2026-27136
Files: go.mod · reported by trivy
1 CVE-2026-27141
Files: go.mod · reported by trivy
1 CVE-2026-33814
Files: go.mod · reported by trivy
1 CVE-2026-39824
Files: go.mod · reported by trivy
1 CVE-2026-39827
Files: go.mod · reported by trivy
1 CVE-2026-39828
Files: go.mod · reported by trivy
1 CVE-2026-39829
Files: go.mod · reported by trivy
1 CVE-2026-39830
Files: go.mod · reported by trivy
1 CVE-2026-39831
Files: go.mod · reported by trivy
1 CVE-2026-39832
Files: go.mod · reported by trivy
1 CVE-2026-39833
Files: go.mod · reported by trivy
1 CVE-2026-39834
Files: go.mod · reported by trivy
1 CVE-2026-39835
Files: go.mod · reported by trivy
1 CVE-2026-42502
Files: go.mod · reported by trivy
1 CVE-2026-42506
Files: go.mod · reported by trivy
1 CVE-2026-42508
Files: go.mod · reported by trivy
1 CVE-2026-46595
Files: go.mod · reported by trivy
1 CVE-2026-46597
Files: go.mod · reported by trivy
1 CVE-2026-46598
Files: go.mod · reported by trivy
1 CVE-2026-46600
Files: go.mod · reported by trivy
1 CVE-2026-56852
Files: go.mod · reported by trivy
1 CVE-2026-56854
Files: go.mod · reported by trivy
1 CVE-2026-56855
Files: go.mod · reported by trivy
1 CVE-2026-78662
Files: go.mod · reported by trivy
1 GHSA-gxhx-2686-5h9g
Files: go.mod · reported by trivy
1 GO-2026-4559
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4918
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5005
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5006
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5013
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5014
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5015
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5016
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5017
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5018
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5019
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5020
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5021
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5023
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5024
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5025
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5026
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5027
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5028
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5029
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5030
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5033
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5320
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5410
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5841
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5942
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5970
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-6303
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-6354
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-6355
Files: /repo/go.mod · reported by osv-scanner
1 HIDDEN_DATA_FILE
Files: /repo/.env.dist · reported by cisco-skill-scanner
Showing 25 of 28; the rest are in the per-scanner reports above.