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Security: IamK77/Cascade

Security

SECURITY.md

Security Policy

Supported Versions

Version Supported
0.2.x Yes
< 0.2 No

Reporting a Vulnerability

If you discover a security vulnerability in Cascade, please report it responsibly.

Contact: security@autoseek.vip

Please include:

  • A description of the vulnerability and its potential impact
  • Steps to reproduce the issue
  • Affected version(s)
  • Any suggested fix, if available

Response timeline:

  • Acknowledgement within 3 business days
  • Initial assessment within 10 business days
  • Fix or mitigation communicated within 30 days for confirmed vulnerabilities

We ask that you do not publicly disclose the vulnerability until a fix has been released.

Security Model

Cascade is designed to run in a trusted, single-machine environment. The following assumptions and boundaries apply:

  • File-based storage with file locking. All graph and event data is persisted to local files (graph.json, events.jsonl). Concurrent access is coordinated via file locks (cross-platform via filelock), which are effective only on a single host.
  • No authentication on the tool API. The 12 LLM-facing tools (add_node, finish_task, etc.) do not perform authentication or authorization. Cascade assumes all callers are trusted.
  • Token files are not access-controlled. Any process with filesystem access to the .cascade/ directory can read or modify stored data.
  • No encryption at rest. Graph state and event logs are stored as plain JSON/JSONL. Sensitive data should not be placed in node descriptions, context fields, or artifacts without external encryption.

Known Limitations

Limitation Details
Single-host file locking File locks are local to a single machine. Running multiple Cascade instances against shared networked storage (e.g., NFS) is not safe.
No data encryption at rest graph.json and events.jsonl are stored in plaintext. Use OS-level disk encryption if data confidentiality is required.

License

Cascade is licensed under the Apache License, Version 2.0.

Copyright 2026 Hangzhou Autoseek Information Technology Co., Ltd.

See LICENSE for the full license text.

There aren't any published security advisories