# langgraph-checkpoint (PyPI) vulnerabilities

3 known vulnerabilities (1 high, 2 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Weekly downloads: 13.1M
- Dependents: 4,288
- Registry: https://pypi.org/project/langgraph-checkpoint/

## Advisories (3)

### [CVE-2026-48775](https://cve.now/CVE-2026-48775): LangGraph Checkpoint: Unsafe JSON deserialization in checkpoint loading

- Severity: Medium 6.8
- Published: Jun 16, 2026
- Affected: fixed in 4.1.1.

### [CVE-2026-27794](https://cve.now/CVE-2026-27794): LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution

- Severity: Medium 6.6
- Published: Feb 25, 2026
- Affected: fixed in 4.0.0.

### [CVE-2025-64439](https://cve.now/CVE-2025-64439): LangGraph Checkpoint affected by RCE in "json" mode of JsonPlusSerializer

- Severity: High 7.4
- Published: Nov 7, 2025
- Affected: fixed in 3.0.0.

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