CVE-2026-27794: LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution
Arbitrary code execution in the LangGraph process when attacker-controlled cache entries are deserialized.
References
- github.com/advisories/GHSA-mhr3-j7m5-c7c9
- github.com/langchain-ai/langgraph
- github.com/langchain-ai/langgraph/commit/f91d79d0c86932ded6e3b9f195d5a0bbd5aef99c
- github.com/langchain-ai/langgraph/pull/6677
- github.com/langchain-ai/langgraph/releases/tag/checkpoint%3D%3D4.0.0
- github.com/langchain-ai/langgraph/security/advisories/GHSA-mhr3-j7m5-c7c9
- nvd.nist.gov/vuln/detail/CVE-2026-27794
Code Behaviors & Features
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