{"cve":"CVE-2026-48775","nvd":{"published":"2026-06-16T19:16:58.880","modified":"2026-06-24T18:53:55.940","status":"Analyzed","description":"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 payloads. Under conditions where someone could modify checkpoint bytes at rest in the backing store, the deserialization path could reconstruct objects beyond what the application expects, which could in turn result in code execution at checkpoint load time. This is a defense-in-depth issue. The affected behavior is reachable only when checkpoint bytes at rest in the backing store can be modified by an unauthorized party. In most deployments that prerequisite already implies a serious incident; the additional concern is turning \"checkpoint-store write access\" into code execution in the application runtime. This issue has been fixed in version 4.1.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":6.8},"cwes":["CWE-502","CWE-913"],"references":["https://github.com/langchain-ai/langgraph/security/advisories/GHSA-fjqc-hq36-qh5p"],"products":["langchain:langgraph-checkpoint"],"source":"nvd","synced_at":"2026-10-19T22:39:28.638635428+00:00"},"epss":{"cve":"CVE-2026-48775","score":0.00232,"percentile":0.14133,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-fjqc-hq36-qh5p","url":"https://osv.dev/vulnerability/GHSA-fjqc-hq36-qh5p","summary":"LangGraph Checkpoint: Unsafe JSON deserialization in checkpoint loading","modified":"2026-07-13T16:42:57.455268050Z","packages":[{"ecosystem":"PyPI","name":"langgraph-checkpoint","purl":"pkg:pypi/langgraph-checkpoint","ranges":["<4.1.1"],"fixed":["4.1.1"]}]},{"id":"PYSEC-2026-2573","url":"https://osv.dev/vulnerability/PYSEC-2026-2573","summary":"LangGraph Checkpoint: Unsafe JSON deserialization in checkpoint loading","modified":"2026-07-13T16:31:49.712394020Z","packages":[{"ecosystem":"PyPI","name":"langgraph-checkpoint","purl":"pkg:pypi/langgraph-checkpoint","ranges":["<4.1.1"],"fixed":["4.1.1"]}]}],"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."]}