| Título | geldata gel-mcp 0.1.0 Path Traversal |
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| Descripción | gel-mcp exposes two rule-related tools: list_rules(), which enumerates the bundled Markdown rule files under RULES_DIR, and fetch_rule(rule_name), which is supposed to return one of those bundled files by name. The implementation of fetch_rule() joins attacker-controlled rule_name directly under RULES_DIR and then calls exists() / read_text() on the resulting path.
Because the code does not reject path separators, traversal tokens, or absolute paths, a caller can request files outside the bundled rule directory. For example, ../../../../../pyproject.toml resolves from src/gel_mcp/static/gel-ai-rules/src/ back to the repository root and returns the project's pyproject.toml instead of a packaged rule file. |
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| Fuente | ⚠️ https://github.com/geldata/gel-mcp/issues/11 |
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| Usuario | LargeW (UID 97302) |
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| Sumisión | 2026-04-13 14:18 (hace 2 meses) |
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| Moderación | 2026-04-29 14:53 (16 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 360139 [geldata gel-mcp 0.1.0 src/gel_mcp/server.py list_rules/fetch_rule rule_name recorrido de directorios] |
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| Puntos | 20 |
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