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

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) LangGraph SQLite Checkpoint es una implementación de LangGraph CheckpointSaver que utiliza una base de datos SQLite (tanto síncrona como asíncrona, a través de aiosqlite). En las versiones 2.1.2 e inferiores, el JsonPlusSerializer (utilizado como el protocolo de serialización predeterminado para todo el proceso de checkpointing) contiene una vulnerabilidad de ejecución remota de código (RCE) al deserializar cargas útiles guardadas en el modo de serialización "json". Por defecto, el serializador intenta usar "msgpack" para la serialización. Sin embargo, antes de la versión 3.0 de la librería del checkpointer, si valores sustitutos Unicode ilegales causaban que la serialización fallara, recurriría al uso del modo "json". Este problema está solucionado en la versión 3.0.0.

07 Nov 2025, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-11-07 21:15

Updated : 2026-04-15 00:35

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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