CVE-2025-64439
BaseFortify
Publication date: 2025-11-07
Last updated on: 2025-11-12
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| langchain-ai | langgraph-api | 0.5 |
| langchain-ai | langgraph-checkpoint | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-502 | The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a Remote Code Execution (RCE) issue in the LangGraph SQLite Checkpoint library versions 2.1.2 and below. It occurs in the JsonPlusSerializer used for deserializing payloads saved in the "json" serialization mode. Normally, the serializer uses "msgpack" mode, but if serialization fails due to illegal Unicode surrogate values, it falls back to "json" mode, which is vulnerable. This fallback allows an attacker to execute arbitrary code during deserialization. The issue is fixed in version 3.0.0.
How can this vulnerability impact me? :
This vulnerability can allow an attacker to execute arbitrary code remotely on systems using vulnerable versions of the LangGraph SQLite Checkpoint library. This can lead to unauthorized control over the affected system, potentially resulting in data theft, system compromise, or disruption of services.
What immediate steps should I take to mitigate this vulnerability?
Upgrade the LangGraph CheckpointSaver library to version 3.0.0 or later, as this version fixes the Remote Code Execution vulnerability related to the JsonPlusSerializer's fallback to "json" serialization mode. Avoid using versions 2.1.2 and below.