Junglewise Threat Intelligence

CVE-2025-64439: PYSEC-2026-1527 - LangGraph Checkpoint affected by RCE in "json" mode of JsonPlusSerializer

CVE-2025-64439 · Severity: medium · CVSS 4 · Published 2026-07-07

Technologies: langgraph-checkpoint (PyPI). Vendors: PyPI.

Executive brief

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

Affected products

  • PyPI langgraph-checkpoint

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