Zed, a code editor, has a symlink escape vulnerability in versions prior to 0.225.9 in Agent file tools (read_file, edit_file). It allows reading and writing files outside the project directory when a project contains symbolic links pointing to external paths. This bypasses the intended workspace boundary and privacy protections (file_scan_exclusions, private_files), potentially leaking sensitive user data to the LLM. Version 0.225.9 fixes the issue.
Weakness
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Zed | Zed | * | 0.225.9 (excluding) |
Potential Mitigations
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/132.html
- https://cwe.mitre.org/data/definitions/17.html
- https://cwe.mitre.org/data/definitions/35.html
- https://cwe.mitre.org/data/definitions/76.html