bash-vet-mcp@1.0.6
CAUTIONPublisher claims: "MCP server that vets LLM-emitted shell commands BEFORE execution. Detects rm -rf in chains, current-dir wipes (the chiefofautism 'rm -rf your repo' pattern), find-exec-rm, package-glob removal (including --purge form and trailing globs like python3-*), dd/mkfs/wipefs, chmod 777, curl|bash + wget|sh + base64-decode|bash obfuscation, chained shutdown, git destructive ops. 30 rules / 8 families. Sub-second, local, no API key. Defensive complement to MCPShell/mcp-shell/mcp-bash." Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Registry PyPI (MCP server)Publisher temurkhan13 · joined 6 days agoInstalls 116Last detonated 6d ago
Is [email protected] safe to install?
KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-10-28 and scored it 63/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Destructive command against a filesystem root or device; Pipe-to-shell pattern; Destructive command against a filesystem root or device. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 1 s · 2 scenarios · 0 deviationst+CategoryObserved action
0.0sprocessno install scripts in bundle
0.5sprocessdependency install exit 1
0.6sprocessexec /usr/bin/timeout
0.6sprocessexec .venv/bin/bash-vet-mcp
0.6sprocessexited 127: timeout: failed to run command '.venv/bin/bash-vet-mcp': No such file or directory
0.6sclaimedno tools/list reply (exit 127)
0.6sprocessscript backend runs setup only
Static findings
CRITICAL
Destructive command against a filesystem root or devicesrc/bash_vet_mcp/render.py:94 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05CRITICAL
Pipe-to-shell patternsrc/bash_vet_mcp/demo.py:14 · Pipe-to-shell pattern — downloads and immediately executes remote codeFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06CRITICAL
Destructive command against a filesystem root or devicesrc/bash_vet_mcp/demo.py:11 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05CRITICAL
Pipe-to-shell patternsrc/bash_vet_mcp/demo.py:74 · Pipe-to-shell pattern — downloads and immediately executes remote codeFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06HIGH
Destructive file system command detectedsrc/bash_vet_mcp/render.py:94 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05HIGH
Destructive file system command detectedsrc/bash_vet_mcp/demo.py:11 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05CRITICAL
Pipe-to-shell patternsrc/bash_vet_mcp/scanner.py:272 · Pipe-to-shell pattern — downloads and immediately executes remote codeFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06CRITICAL
Pipe-to-shell patternsrc/bash_vet_mcp/server.py:40 · Pipe-to-shell pattern — downloads and immediately executes remote codeFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06CRITICAL
Destructive command against a filesystem root or devicesrc/bash_vet_mcp/scanner.py:120 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05HIGH
Destructive file system command detectedsrc/bash_vet_mcp/scanner.py:91 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05CRITICAL
Pipe-to-shell patternsrc/bash_vet_mcp/scanner.py:262 · Pipe-to-shell pattern — downloads and immediately executes remote codeFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06HIGH
Privileged sudo commandsrc/bash_vet_mcp/scanner.py:238 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05HIGH
Host or command assembled from base64 fragmentssrc/bash_vet_mcp/scanner.py:283 · Host or command assembled from base64 fragmentsFix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.
AST07HIGH
Privileged sudo commandsrc/bash_vet_mcp/scanner.py:237 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05HIGH
Privileged sudo commandsrc/bash_vet_mcp/demo.py:84 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05HIGH
Destructive file system command detectedsrc/bash_vet_mcp/scanner.py:84 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05HIGH
Privileged sudo commandsrc/bash_vet_mcp/scanner.py:239 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05CRITICAL
Destructive command against a filesystem root or devicesrc/bash_vet_mcp/scanner.py:84 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05HIGH
Destructive file system command detectedsrc/bash_vet_mcp/demo.py:65 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05HIGH
Privileged sudo commandsrc/bash_vet_mcp/demo.py:69 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
File permission modification commandsrc/bash_vet_mcp/scanner.py:219 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Remote installer piped to shellsrc/bash_vet_mcp/demo.py:14 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
File permission modification commandsrc/bash_vet_mcp/scanner.py:20 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Remote installer piped to shellsrc/bash_vet_mcp/demo.py:74 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
File permission modification commandsrc/bash_vet_mcp/demo.py:83 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Remote installer piped to shellsrc/bash_vet_mcp/server.py:40 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
File permission modification commandSKILL.md:6 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
File permission modification commandpyproject.toml:8 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
File permission modification commandsrc/bash_vet_mcp/demo.py:16 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05HIGH
Privileged sudo commandsrc/bash_vet_mcp/server.py:39 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Remote installer piped to shellSKILL.md:6 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
Remote installer piped to shellsrc/bash_vet_mcp/server.py:67 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
File permission modification commandsrc/bash_vet_mcp/scanner.py:228 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Remote installer piped to shellpyproject.toml:8 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
File permission modification commandsrc/bash_vet_mcp/scanner.py:221 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Remote installer piped to shellsrc/bash_vet_mcp/scanner.py:262 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
File permission modification commandsrc/bash_vet_mcp/demo.py:84 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05HIGH
Access to sensitive file pathssrc/bash_vet_mcp/scanner.py:339 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05MEDIUM
Remote installer piped to shelltests/test_scanner.py:314 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
Destructive file system command detectedtests/test_scanner.py:43 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Host or command assembled from base64 fragmentstests/test_scanner.py:349 · Host or command assembled from base64 fragmentsFix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.
AST07MEDIUM
Destructive command against a filesystem root or devicetests/test_scanner.py:43 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Destructive command against a filesystem root or devicetests/test_scanner.py:44 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
File permission modification commandsrc/bash_vet_mcp/server.py:67 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Privileged sudo commandtests/test_scanner.py:45 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Privileged sudo commandtests/test_scanner.py:86 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Destructive file system command detectedtests/test_scanner.py:44 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Destructive command against a filesystem root or devicetests/test_scanner.py:105 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Destructive file system command detectedtests/test_scanner.py:45 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Destructive file system command detectedtests/test_scanner.py:46 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Remote installer piped to shelltests/test_scanner.py:315 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
Destructive file system command detectedtests/test_scanner.py:42 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Destructive command against a filesystem root or devicetests/test_scanner.py:45 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Remote installer piped to shellsrc/bash_vet_mcp/server.py:158 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
Host or command assembled from base64 fragmentstests/test_scanner.py:348 · Host or command assembled from base64 fragmentsFix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.
AST07MEDIUM
Destructive command against a filesystem root or devicetests/test_scanner.py:42 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Remote installer piped to shelltests/test_scanner.py:316 · Remote installer piped to shellFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07MEDIUM
Pipe-to-shell patterntests/test_scanner.py:315 · Pipe-to-shell pattern — downloads and immediately executes remote codeFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06MEDIUM
File permission modification commandtests/test_scanner.py:277 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Access to sensitive file pathstests/test_scanner.py:258 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05MEDIUM
File permission modification commandtests/test_scanner.py:259 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Privileged sudo commandtests/test_scanner.py:172 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
File permission modification commandtests/test_scanner.py:272 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Pipe-to-shell patterntests/test_scanner.py:328 · Pipe-to-shell pattern — downloads and immediately executes remote codeFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06MEDIUM
File permission modification commandtests/test_scanner.py:258 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Pipe-to-shell patterntests/test_scanner.py:330 · Pipe-to-shell pattern — downloads and immediately executes remote codeFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06MEDIUM
Privileged sudo commandtests/test_scanner.py:194 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Destructive file system command detectedtests/test_server.py:74 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
File permission modification commandtests/test_scanner.py:257 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05MEDIUM
Pipe-to-shell patterntests/test_scanner.py:333 · Pipe-to-shell pattern — downloads and immediately executes remote codeFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06MEDIUM
Pipe-to-shell patterntests/test_scanner.py:314 · Pipe-to-shell pattern — downloads and immediately executes remote codeFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06MEDIUM
Privileged sudo commandtests/test_scanner.py:139 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Destructive command against a filesystem root or devicetests/test_server.py:74 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05MEDIUM
Privileged sudo commandtests/test_server.py:93 · Privileged sudo command — agent may execute with elevated privilegesFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05What would make this Verified
17 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%- Destructive command against a filesystem root or device≈ +9 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
- Pipe-to-shell pattern≈ +9 on the totalBuild commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
- Unclaimed publisher≈ +8 on the totalClaim temurkhan13: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
- Does not do what the description says≈ +5 on the totalIn the sandbox the skill never performed the task it claims (no call to the service it is for). Make sure the happy path runs without extra setup, or describe the real behavior.
- Obfuscated code≈ +5 on the totalRemove base64-assembled strings, eval of decoded text and minified blobs. Reviewers and scanners both treat unreadable code as hostile.
- Destructive file system command detected≈ +4 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
Publish a new version to PyPI, then queue it here. Not your skill? Claim the handle to get verdict changes by email.Claim temurkhan13