CVE-2025-64439

LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In versions 2.1.2 and below, the JsonPlusSerializer (used as the default serialization protocol for all checkpointing) contains a Remote Code Execution (RCE) vulnerability when deserializing payloads saved in the "json" serialization mode. By default, the serializer attempts to use "msgpack" for serialization. However, prior to version 3.0 of the checkpointer library, if illegal Unicode surrogate values caused serialization to fail, it would fall back to using the "json" mode. This issue is fixed in version 3.0.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/langchain-ai/langgraph/blob/c5744f583b11745cd406f3059903e17bbcdcc8ac/libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py
https://github.com/langchain-ai/langgraph/commit/c5744f583b11745cd406f3059903e17bbcdcc8ac
https://github.com/langchain-ai/langgraph/releases/tag/checkpoint%3D%3D3.0.0
https://github.com/langchain-ai/langgraph/security/advisories/GHSA-wwqv-p2pp-99h5

Configurations

No configuration.

History

07 Nov 2025, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-11-07 21:15

Updated : 2025-11-12 16:20

NVD link : CVE-2025-64439

Mitre link : CVE-2025-64439

CVE.ORG link : CVE-2025-64439

JSON object : View

Products Affected

No product.

CWE

CWE-502

Deserialization of Untrusted Data

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