First Seen
Feb 18, 2026
Last Scanned
Feb 22, 2026
Findings
3
Score
62/100
Findings (3)
Skill can read private data (credentials, SSH keys, env vars) AND write to public channels (Slack, Discord, email). This combination enables data exfiltration.
[reads_private_data] access to credential + [writes_public_output] send sensitive data to external channelBreak the toxic data flow by adding validation and sanitization between the input source and the sensitive operation. Do not pass untrusted data directly to file system, network, or execution APIs.
Likely FP if the data flow involves only trusted, hardcoded values and the taint analysis over-approximated the untrusted input sources.
Detects skills that both read sensitive credential files and send data to external services
access to credential + send sensitive data to externalBlock access to git credentials, SSH keys, and repository tokens. If git operations are needed, use scoped deploy keys and restrict the tool to specific repositories.
Likely FP if the match is documentation about git configuration (e.g., setting up git credentials helper) rather than code that reads and transmits them.
Detects patterns where credential or secret reads are combined with external data transmission
access to credential + send sensitive data to externalPrevent credentials and sensitive data obtained by one MCP tool from being passed to other tools. Implement data isolation between tools and restrict cross-tool data flow for secrets.
Likely FP if the cross-tool data flow is intentional API authentication (e.g., a tool fetches an auth token that another tool uses for the same service).