Submit #807751: 54yyyu code-mcp 4cfc4643541a110c906d93635b391bf7e357f4a8 Path Traversalinfo

Title54yyyu code-mcp 4cfc4643541a110c906d93635b391bf7e357f4a8 Path Traversal
DescriptionThe server attempts to restrict file access to PROJECT_ROOT using is_safe_path, but relies on Path.absolute() parent membership checks. Because absolute() does not canonicalize .., crafted paths such as PROJECT_ROOT/../outside.txt can pass the parent check while resolving outside workspace boundaries in downstream file operations. This may enable out-of-workspace read/write access through MCP file tools.
Source⚠️ https://github.com/54yyyu/code-mcp/issues/4
User
 CPT_Penner (UID 97246)
Submission04/18/2026 20:28 (3 months ago)
Moderation05/04/2026 23:24 (16 days later)
StatusAccepted
VulDB entry361071 [54yyyu code-mcp up to 4cfc4643541a110c906d93635b391bf7e357f4a8 MCP File src/code_mcp/server.py is_safe_path path traversal]
Points20

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