LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution

ContextA Remote Code Execution vulnerability exists in LangGraph's caching layer when applications enable cache backends that inherit from BaseCache and opt nodes into caching via CachePolicy. Prior to langgraph-checkpoint 4.0.0, BaseCache defaults to JsonPlusSerializerpicklefallback=True. When...

LangGraph Checkpoint affected by RCE in "json" mode of JsonPlusSerializer

SummaryPrior to langgraph-checkpoint version 3.0 , LangGraph’s 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.If an attacker can cause your...

CVE-2026-27794 LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution

LangGraph Checkpoint defines the base interface for LangGraph checkpointers. Prior to version 4.0.0, a Remote Code Execution vulnerability exists in LangGraph's caching layer when applications enable cache backends that inherit from BaseCache and opt nodes into caching via CachePolicy. Prior to...

The vulnerability relates to the implementation of the serialization protocol of the LangGraph Checkpoint pattern in the SQLite database management system. This allows a attacker to execute arbitrary code.

The vulnerability of the JsonPlusSerializer serialization protocol of the LangGraph Checkpoint state-saving pattern of the SQLite database management system is related to deficiencies in the deserialization mechanism. Exploiting this vulnerability could allow an attacker to execute arbitrary code...

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...

CVE-2025-64439

CVE-2025-64439 : LangGraph SQLite Checkpoint uses JsonPlusSerializer (default for all checkpointing) with a potential RCE when deserializing payloads saved in the json mode. Prior to 3.0.0, if Unicode surrogate values caused serialization to fail, it could fall back to json, enabling deserializat...

EUVD-2025-37934

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...

CVE-2025-64439 LangGraph Checkpoint affected by RCE in "json" mode of JsonPlusSerializer

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...

Deserialization of Untrusted Data

Overview langgraph is a Building stateful, multi-actor applications with LLMs Affected versions of this package are vulnerable to Deserialization of Untrusted Data via the JsonPlusSerializer deserialization process of payloads saved in the json serialization mode. An attacker can execute arbitrar...