io.github.doublegate/cyberchef-mcp
NPM · CYBERCHEF-MCP · 2 COMPONENTS · SCANNED SEP 20
CyberChef's 504 data-transformation operations as MCP tools: encryption, encoding, forensics.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security87
- No malware found by supply-chain analysis.Pass
- A known CVE affects elliptic, but no fixed version has been published, so there is nothing to upgrade to. View diagnostics → Partial
- Runs a script at install time (postinstall) that we could not recognise. It may be perfectly ordinary, but we do not read the published tarball, so we cannot say what it does. View diagnostics → Partial
- Dependency health was assessed across the 400 of 452 dependencies we could resolve, so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to doublegate/CyberChef-MCP). View diagnostics → Pass
- Clear OSI-approved license (GPL-3.0-or-later).Pass
- Actively maintained (last published 8 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability0
- Schema quality not yet verified: this package installed, but its server did not start, so we have no schema to assess.Unverified
Stability & Change Management0
- Stability not yet verified: this package installed, but its server did not start, so we have no schema to compare.Unverified
Tool Coverage0
- Tool coverage not yet verified: this package installed, but its server did not start, so we have no tool definitions to assess.Unverified
Tool Safety0
- Tool safety not yet verified: this package installed, but its server did not start, so we have no tool text to scan.Unverified
Capabilities0
- Protocol version not yet verified: this package installed, but its server did not start, so we never saw its MCP handshake.Unverified
Unverified: 5 categories
Categories scored 0 because our sandbox run of this package has not given us the schema these checks need to read. That is a gap on our side rather than a finding about the package, and we only credit what we can confirm, so the score stands at 0 until the capture succeeds. We are working through the fleet, so this normally clears without any action from you. How we score packages →
How do I install the io.github.doublegate/cyberchef-mcp server?
io.github.doublegate/cyberchef-mcp runs locally as an npm package, launched with npx -y cyberchef-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · cyberchef-mcp
claude mcp add doublegate-cyberchef-mcp -- npx -y cyberchef-mcp
{
"mcpServers": {
"doublegate-cyberchef-mcp": {
"command": "npx",
"args": [
"-y",
"cyberchef-mcp"
]
}
}
} {
"servers": {
"doublegate-cyberchef-mcp": {
"command": "npx",
"args": [
"-y",
"cyberchef-mcp"
]
}
}
} codex mcp add doublegate-cyberchef-mcp -- npx -y cyberchef-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"doublegate-cyberchef-mcp": {
"type": "local",
"command": [
"npx",
"-y",
"cyberchef-mcp"
],
"enabled": true
}
}
} openclaw mcp add doublegate-cyberchef-mcp --command npx --arg -y --arg cyberchef-mcp
mcp_servers:
doublegate-cyberchef-mcp:
command: "npx"
args: ["-y", "cyberchef-mcp"] {
"McpServers": {
"doublegate-cyberchef-mcp": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"cyberchef-mcp"
]
}
}
} assistant mcp add doublegate-cyberchef-mcp -t stdio -c npx -a -y cyberchef-mcp
{
"mcpServers": {
"doublegate-cyberchef-mcp": {
"command": "npx",
"args": [
"-y",
"cyberchef-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 20 Sept 26 +1
- CVE-2025-14505 affects this package ▼ security
- Known CVEs: A known CVE affects elliptic, but no fixed version has been published, so there is nothing to upgrade to. security
- 19 Sept 26 −1
- CVE-2025-14505 no longer affects this package ▲ security
- Known CVEs: Known CVEs were checked across the 400 of 452 dependencies we could resolve, so this covers what we could see, not the whole tree. security
- 13 Sept 26 +24
- Malware scan: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Stability: Stability not yet verified: this package installed, but its server did not start, so we have no schema to compare. security
- Tool safety: Tool safety not yet verified: this package installed, but its server did not start, so we have no tool text to scan. security
- Dependency health: unverified → partial ▲ functional
- Schema quality: Schema quality not yet verified: this package installed, but its server did not start, so we have no schema to assess. functional
- Capabilities: Protocol version not yet verified: this package installed, but its server did not start, so we never saw its MCP handshake. functional
- Tool coverage: Tool coverage not yet verified: this package installed, but its server did not start, so we have no tool definitions to assess. functional
- 12 Sept 26 −9
- Known CVEs: partial → unverified ▼ security
- Dependency health: partial → unverified ▼ functional
- Package version: 4.0.0 → 4.2.0 functional
- Package version: 4.0.0 → 4.1.0 functional
- 11 Sept 26 −15
- Malware scan: pass → unverified ▼ security
- Tool safety: Tool safety not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet. security
- Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet. security
- Schema quality: Schema quality not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet. functional
- Capabilities: Protocol version not yet verified: we do not have a sandbox capture of the MCP handshake this version of the package performs yet. functional
- Tool coverage: Tool coverage not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet. functional
- Package version: 3.8.0 → 4.0.0 functional
- Package version: 3.8.0 → 3.10.0 functional
- Package version: 3.8.0 → 3.9.0 functional
- 6 Sept 26 +9
- CVE-2025-14505 affects this package ▼ security
- Known CVEs: unverified → partial ▲ security
- Stability: Stability not yet verified: this package installed, but its server did not start, so we have no schema to compare. security
- Tool safety: Tool safety not yet verified: this package installed, but its server did not start, so we have no tool text to scan. security
- Dependency health: unverified → partial ▲ functional
- Schema quality: Schema quality not yet verified: this package installed, but its server did not start, so we have no schema to assess. functional
- Capabilities: Protocol version not yet verified: this package installed, but its server did not start, so we never saw its MCP handshake. functional
- Tool coverage: Tool coverage not yet verified: this package installed, but its server did not start, so we have no tool definitions to assess. functional
- 5 Sept 26 0
- Package version: 3.7.0 → 3.8.0 functional
- 4 Sept 26 37
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Analysed npm/cyberchef-mcp@4.2.0
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | doublegate/CyberChef-MCP |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/doublegate/CyberChef-MCP/.github/workflows/mcp-release.yml@refs/tags/v4.2.0 |
| Rekor log index | 2803339612 |
| Predicate type | https://slsa.dev/provenance/v1 |
| Subject digest | sha512:eec78dbab4353a7485307be19f50ef974cd9bca6784a1ac9c556a3b38412e0686f9bbee71fb258a2f380e436d325c76dd0582079a32b68482c4ad8e8f |
Background: How many MCP packages publish verified provenance →
Install scripts 1 script
| Hook | Tier | Command |
|---|---|---|
| postinstall | unreviewed | node scripts/patch-dependencies.mjs |
Background: Why install scripts are a supply-chain risk →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-848j-6mx2-7j84 | CVE-2025-14505 | medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L | no |
Background: What a vulnerability scan can and cannot prove →
Dependencies 400 packages
| Packages resolved | 400 |
|---|---|
| Deprecated | 4 |
| Stale | 204 |
| No linked repository | 3 |
| Tree resolution | Partial |
The dependency tree was only partially resolved, so these counts may be incomplete.
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
Tools for package channels are captured by running the package in an isolated sandbox. The most recent sandbox run could not capture a tool list from this package.
What is the io.github.doublegate/cyberchef-mcp server?
io.github.doublegate/cyberchef-mcp is listed in the public MCP registry as io.github.doublegate/cyberchef-mcp. CyberChef's 504 data-transformation operations as MCP tools: encryption, encoding, forensics. This page covers its npm package (cyberchef-mcp).
Is the io.github.doublegate/cyberchef-mcp server safe to use?
io.github.doublegate/cyberchef-mcp scores 46 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 20 September 2026. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
Is the io.github.doublegate/cyberchef-mcp server still maintained?
io.github.doublegate/cyberchef-mcp is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.doublegate/cyberchef-mcp server under?
io.github.doublegate/cyberchef-mcp declares the GPL-3.0-or-later licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.