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CVE-2026-48775 LangGraph Checkpoint: Unsafe JSON deserialization in checkpoint loading

🗓️ 16 Jun 2026 17:53:10Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In versions 4.1.0 and prior, the JsonPlusSerializer can reconstruct Python objects from JSON checkpoint payload...

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Affected
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2026-48775
16 Jun 202617:53
cve
EUVD
EUVD-2026-37140
16 Jun 202617:53
euvd
NVD
CVE-2026-48775
16 Jun 202619:16
nvd
Positive Technologies
PT-2026-49755
16 Jun 202600:00
ptsecurity
Vulnrichment
CVE-2026-48775 LangGraph Checkpoint: Unsafe JSON deserialization in checkpoint loading
16 Jun 202617:53
vulnrichment
[
  {
    "vendor": "langchain-ai",
    "product": "langgraph",
    "versions": [
      {
        "version": "< 1.2.2",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "langchain-ai",
    "product": "langraph-checkpoint",
    "versions": [
      {
        "version": "< 4.1.1",
        "status": "affected"
      }
    ]
  }
]

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16 Jun 2026 17:53Current
CVSS 3.16.8
EPSS0.0011
5