[fix] mysql search table name validation - #6341
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📝 WalkthroughWalkthroughMySQLSearchTool validates and backtick-quotes table names before building ChangesMySQL search tool hardening
Mergeability Score: 🔵 Low · up to The PR prevents injected table names and safely quotes accepted identifiers, but it still permits identifier parts longer than MySQL's 64-character limit, which could cause affected searches to fail at runtime. The PR is mergeable with explicit owner awareness and a bounded follow-up to reject overlong identifiers. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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Summary: This PR hardens MySQLSearchTool table-name handling by validating schema/table identifiers and quoting accepted names before constructing the loader query; no exploitable security vulnerabilities were identified.
Risk: Low risk. The change reduces an existing SQL injection surface and does not introduce new authentication, authorization, data exposure, or network-facing attack surfaces.
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Pull request overview
This PR mitigates SQL injection risk in MySQLSearchTool by validating/quoting MySQL table identifiers before constructing the loader query, and adds regression tests to ensure unsafe identifiers are rejected.
Changes:
- Add strict validation + backtick-quoting for
table_name(supportstableandschema.tableforms). - Build loader query using the validated, quoted identifier.
- Add tests covering valid identifier quoting, rejection of injected identifiers, and unchanged search behavior.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| lib/crewai-tools/src/crewai_tools/tools/mysql_search_tool/mysql_search_tool.py | Adds identifier validation and backtick-quoting before building the SELECT * FROM ... query. |
| lib/crewai-tools/tests/tools/test_mysql_search_tool.py | Introduces regression tests for valid/invalid table identifiers and confirms _run() behavior remains intact. |
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Actionable comments posted: 1
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Inline comments:
In
`@lib/crewai-tools/src/crewai_tools/tools/mysql_search_tool/mysql_search_tool.py`:
- Around line 10-29: Update _quote_mysql_table_name to reject any identifier
part longer than 64 characters while preserving the existing format validation
and quoting behavior. Add a regression test in
lib/crewai-tools/tests/tools/test_mysql_search_tool.py covering a 65-character
identifier and asserting it is rejected.
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Fix all unresolved CodeRabbit comments on this PR:
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ℹ️ Review info
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📒 Files selected for processing (2)
lib/crewai-tools/src/crewai_tools/tools/mysql_search_tool/mysql_search_tool.pylib/crewai-tools/tests/tools/test_mysql_search_tool.py
Summary
MySQLSearchTooltable names before building the loader queryRoot Cause
MySQLSearchTool.add()interpolatedtable_namedirectly intoSELECT * FROM {table_name};and passed that SQL through the RAG adapter to the MySQL loader, where it is executed withcursor.execute(query). The constructor API describestable_nameas a table identifier, not arbitrary SQL, so attacker-controlled names could alter the query.Validation
.venv/bin/python -m pytest lib/crewai-tools/tests/tools/test_mysql_search_tool.py->15 passed.venv/bin/python -m ruff check lib/crewai-tools/src/crewai_tools/tools/mysql_search_tool/mysql_search_tool.py lib/crewai-tools/tests/tools/test_mysql_search_tool.py-> passed.venv/bin/python -m ruff format --check lib/crewai-tools/src/crewai_tools/tools/mysql_search_tool/mysql_search_tool.py lib/crewai-tools/tests/tools/test_mysql_search_tool.py-> passed