{"cve":"CVE-2025-64439","nvd":{"published":"2025-11-07T21:15:41.690","modified":"2026-06-17T09:54:23.280","status":"Deferred","description":"LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In versions 2.1.2 and below, the JsonPlusSerializer (used as the default serialization protocol for all checkpointing) contains a Remote Code Execution (RCE) vulnerability when deserializing payloads saved in the \"json\" serialization mode. By default, the serializer attempts to use \"msgpack\" for serialization. However, prior to version 3.0 of the checkpointer library, if illegal Unicode surrogate values caused serialization to fail, it would fall back to using the \"json\" mode. This issue is fixed in version 3.0.0.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:H/SI:H/SA:H","score":7.4},"cvss_v3":null,"cwes":["CWE-502"],"references":["https://github.com/langchain-ai/langgraph/blob/c5744f583b11745cd406f3059903e17bbcdcc8ac/libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py","https://github.com/langchain-ai/langgraph/commit/c5744f583b11745cd406f3059903e17bbcdcc8ac","https://github.com/langchain-ai/langgraph/releases/tag/checkpoint%3D%3D3.0.0","https://github.com/langchain-ai/langgraph/security/advisories/GHSA-wwqv-p2pp-99h5"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:14:53.307938015+00:00"},"epss":{"cve":"CVE-2025-64439","score":0.00887,"percentile":0.59303,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wwqv-p2pp-99h5","url":"https://osv.dev/vulnerability/GHSA-wwqv-p2pp-99h5","summary":"LangGraph Checkpoint affected by RCE in \"json\" mode of JsonPlusSerializer ","modified":"2026-07-07T17:56:18.504801770Z","packages":[{"ecosystem":"PyPI","name":"langgraph-checkpoint","purl":"pkg:pypi/langgraph-checkpoint","ranges":["<3.0.0"],"fixed":["3.0.0"]}]},{"id":"PYSEC-2026-1527","url":"https://osv.dev/vulnerability/PYSEC-2026-1527","summary":"LangGraph Checkpoint affected by RCE in \"json\" mode of JsonPlusSerializer ","modified":"2026-07-07T17:46:36.753355570Z","packages":[{"ecosystem":"PyPI","name":"langgraph-checkpoint","purl":"pkg:pypi/langgraph-checkpoint","ranges":["<3.0.0"],"fixed":["3.0.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}