Description
LangGraph Python SDK is used to connect to running LangGraph API servers, manage assistants, threads and stream runs from Python applications. From langgraph-sdk 0.4.0 until 0.4.6, and from langgraph 1.2.3 until 1.2.14 when RemoteGraph v3 streaming uses an affected langgraph-sdk version, the synchronous and asynchronous v3 stream get_tree and _fetch_state helpers interpolate caller-controlled assistant_id and thread_id values into authenticated GET request paths without using _quote_path_param. Relative path segments can therefore be normalized into another readable path on the configured server while retaining authentication headers. This issue is fixed in langgraph-sdk 0.4.6 and langgraph 1.2.14.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| langchain-ai | langgraph | >= 1.2.3, < 1.2.14 | — |
| langchain-ai | langgraph-sdk | >= 0.4.0, < 0.4.6 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | langgraph | >= 1.2.3, < 1.2.14 | 1.2.14 | GHSA-3fx2-cqw9-xr3c |
| PyPI | langgraph-sdk | >= 0.4.0, < 0.4.6 | 0.4.6 | GHSA-3fx2-cqw9-xr3c |
References
- https://github.com/langchain-ai/langgraph/security/advisories/GHSA-3fx2-cqw9-xr3c
- https://github.com/langchain-ai/langgraph/pull/9213
- https://github.com/langchain-ai/langgraph/commit/d89c7e100ec6fc1512544d23b0a7c5169699ef3e
- https://github.com/langchain-ai/langgraph/releases/tag/1.2.14
- https://github.com/langchain-ai/langgraph/releases/tag/sdk%3D%3D0.4.6