Files
crewAI/docs/en/tools/file-document/pdfsearchtool.mdx
alex-clawd 9325e2f6a4 fix: add path and URL validation to RAG tools (#5310)
* fix: add path and URL validation to RAG tools

Add validation utilities to prevent unauthorized file reads and SSRF
when RAG tools accept LLM-controlled paths/URLs at runtime.

Changes:
- New crewai_tools.utilities.safe_path module with validate_file_path(),
  validate_directory_path(), and validate_url()
- File paths validated against base directory (defaults to cwd).
  Resolves symlinks and ../ traversal. Rejects escape attempts.
- URLs validated: file:// blocked entirely. HTTP/HTTPS resolves DNS
  and blocks private/reserved IPs (10.x, 172.16-31.x, 192.168.x,
  127.x, 169.254.x, 0.0.0.0, ::1, fc00::/7).
- Validation applied in RagTool.add() — catches all RAG search tools
  (JSON, CSV, PDF, TXT, DOCX, MDX, Directory, etc.)
- Removed file:// scheme support from DataTypes.from_content()
- CREWAI_TOOLS_ALLOW_UNSAFE_PATHS=true env var for backward compat
- 27 tests covering traversal, symlinks, private IPs, cloud metadata,
  IPv6, escape hatch, and valid paths/URLs

* fix: validate path/URL keyword args in RagTool.add()

The original patch validated positional *args but left all keyword
arguments (path=, file_path=, directory_path=, url=, website=,
github_url=, youtube_url=) unvalidated, providing a trivial bypass
for both path-traversal and SSRF checks.

Applies validate_file_path() to path/file_path/directory_path kwargs
and validate_url() to url/website/github_url/youtube_url kwargs before
they reach the adapter. Adds a regression-test file covering all eight
kwarg vectors plus the two existing positional-arg checks.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: address CodeQL and review comments on RAG path/URL validation

- Replace insecure tempfile.mktemp() with inline symlink target in test
- Remove unused 'target' variable and unused tempfile import
- Narrow broad except Exception: pass to only catch urlparse errors;
  validate_url ValueError now propagates instead of being silently swallowed
- Fix ruff B904 (raise-without-from-inside-except) in safe_path.py
- Fix ruff B007 (unused loop variable 'family') in safe_path.py
- Use validate_directory_path in DirectorySearchTool.add() so the
  public utility is exercised in production code

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* style: fix ruff format + remaining lint issues

* fix: resolve mypy type errors in RAG path/URL validation

- Cast sockaddr[0] to str() to satisfy mypy (socket.getaddrinfo returns
  sockaddr where [0] is str but typed as str | int)
- Remove now-unnecessary `type: ignore[assignment]` and
  `type: ignore[literal-required]` comments in rag_tool.py

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: unroll dynamic TypedDict key loops to satisfy mypy literal-required

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* test: allow tmp paths in RAG data-type tests via CREWAI_TOOLS_ALLOW_UNSAFE_PATHS

TemporaryDirectory creates files under /tmp/ which is outside CWD and is
correctly blocked by the new path validation.  These tests exercise
data-type handling, not security, so add an autouse fixture that sets
CREWAI_TOOLS_ALLOW_UNSAFE_PATHS=true for the whole file.  Path/URL
security is covered by test_rag_tool_path_validation.py.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* test: allow tmp paths in search-tool and rag_tool tests via CREWAI_TOOLS_ALLOW_UNSAFE_PATHS

test_search_tools.py has tests for TXTSearchTool, CSVSearchTool,
MDXSearchTool, JSONSearchTool, and DirectorySearchTool that create
files under /tmp/ via tempfile, which is outside CWD and correctly
blocked by the new path validation.  rag_tool_test.py has one test
that calls tool.add() with a TemporaryDirectory path.

Add the same autouse allow_tmp_paths fixture used in
test_rag_tool_add_data_type.py.  Security is covered separately by
test_rag_tool_path_validation.py.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* chore: update tool specifications

* docs: document CodeInterpreterTool removal and RAG path/URL validation

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: address three review comments on path/URL validation

- safe_path._is_private_or_reserved: after unwrapping IPv4-mapped IPv6
  to IPv4, only check against IPv4 networks to avoid TypeError when
  comparing an IPv4Address against IPv6Network objects.
- safe_path.validate_file_path: handle filesystem-root base_dir ('/')
  by not appending os.sep when the base already ends with a separator,
  preventing the '//'-prefix bug.
- rag_tool.add: path-detection heuristic now checks for both '/' and
  os.sep so forward-slash paths are caught on Windows as well as Unix.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: remove unused _BLOCKED_NETWORKS variable after IPv4/IPv6 split

* chore: update tool specifications

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-04-07 13:29:45 -03:00

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---
title: PDF RAG Search
description: The `PDFSearchTool` is designed to search PDF files and return the most relevant results.
icon: file-pdf
mode: "wide"
---
# `PDFSearchTool`
<Note>
We are still working on improving tools, so there might be unexpected behavior or changes in the future.
</Note>
## Description
The PDFSearchTool is a RAG tool designed for semantic searches within PDF content. It allows for inputting a search query and a PDF document, leveraging advanced search techniques to find relevant content efficiently.
This capability makes it especially useful for extracting specific information from large PDF files quickly.
## Installation
To get started with the PDFSearchTool, first, ensure the crewai_tools package is installed with the following command:
```shell
pip install 'crewai[tools]'
```
## Example
Here's how to use the PDFSearchTool to search within a PDF document:
```python Code
from crewai_tools import PDFSearchTool
# Initialize the tool allowing for any PDF content search if the path is provided during execution
tool = PDFSearchTool()
# OR
# Initialize the tool with a specific PDF path for exclusive search within that document
tool = PDFSearchTool(pdf='path/to/your/document.pdf')
```
## Arguments
- `pdf`: **Optional** The PDF path for the search. Can be provided at initialization or within the `run` method's arguments. If provided at initialization, the tool confines its search to the specified document.
## Custom model and embeddings
By default, the tool uses OpenAI for both embeddings and summarization. To customize the model, you can use a config dictionary as follows. Note: a vector database is required because generated embeddings must be stored and queried from a vectordb.
```python Code
from crewai_tools import PDFSearchTool
# - embedding_model (required): choose provider + provider-specific config
# - vectordb (required): choose vector DB and pass its config
tool = PDFSearchTool(
config={
"embedding_model": {
# Supported providers: "openai", "azure", "google-generativeai", "google-vertex",
# "voyageai", "cohere", "huggingface", "jina", "sentence-transformer",
# "text2vec", "ollama", "openclip", "instructor", "onnx", "roboflow", "watsonx", "custom"
"provider": "openai", # or: "google-generativeai", "cohere", "ollama", ...
"config": {
# Model identifier for the chosen provider. "model" will be auto-mapped to "model_name" internally.
"model": "text-embedding-3-small",
# Optional: API key. If omitted, the tool will use provider-specific env vars
# (e.g., OPENAI_API_KEY or EMBEDDINGS_OPENAI_API_KEY for OpenAI).
# "api_key": "sk-...",
# Provider-specific examples:
# --- Google Generative AI ---
# (Set provider="google-generativeai" above)
# "model_name": "gemini-embedding-001",
# "task_type": "RETRIEVAL_DOCUMENT",
# "title": "Embeddings",
# --- Cohere ---
# (Set provider="cohere" above)
# "model": "embed-english-v3.0",
# --- Ollama (local) ---
# (Set provider="ollama" above)
# "model": "nomic-embed-text",
},
},
"vectordb": {
"provider": "chromadb", # or "qdrant"
"config": {
# For ChromaDB: pass "settings" (chromadb.config.Settings) or rely on defaults.
# Example (uncomment and import):
# from chromadb.config import Settings
# "settings": Settings(
# persist_directory="/content/chroma",
# allow_reset=True,
# is_persistent=True,
# ),
# For Qdrant: pass "vectors_config" (qdrant_client.models.VectorParams).
# Example (uncomment and import):
# from qdrant_client.models import VectorParams, Distance
# "vectors_config": VectorParams(size=384, distance=Distance.COSINE),
# Note: collection name is controlled by the tool (default: "rag_tool_collection"), not set here.
}
},
}
)
## Security
### Path Validation
File paths provided to this tool are validated against the current working directory. Paths that resolve outside the working directory are rejected with a `ValueError`.
To allow paths outside the working directory (for example, in tests or trusted pipelines), set the environment variable:
```shell
CREWAI_TOOLS_ALLOW_UNSAFE_PATHS=true
```
### URL Validation
URL inputs are validated: `file://` URIs and requests targeting private or reserved IP ranges are blocked to prevent server-side request forgery (SSRF) attacks.
```