{"action":"Upgrade langgraph-checkpoint to 4.1.1 or later.","affected":[{"fixed":"4.1.1","introduced":"0"}],"component":"langgraph-checkpoint","cve_ids":["CVE-2026-48775"],"ecosystem":"PyPI","epss":0.00685,"exploited":false,"fixed_versions":["4.1.1"],"ghsa_id":"GHSA-fjqc-hq36-qh5p","id":"tcs_01M5KH092CESTJJH5CS69R2J6S","modified_at":"2026-07-13T16:31:49.712394020Z","published_at":"2026-07-13T15:46:23.679867Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2573","https://github.com/langchain-ai/langgraph/security/advisories/GHSA-fjqc-hq36-qh5p","https://nvd.nist.gov/vuln/detail/CVE-2026-48775","https://github.com/langchain-ai/langgraph","https://pypi.org/project/langgraph-checkpoint","https://github.com/advisories/GHSA-fjqc-hq36-qh5p"],"severity":{"label":"medium","score":6.8},"sources":[{"source":"osv","source_id":"PYSEC-2026-2573","url":"https://osv.dev/vulnerability/PYSEC-2026-2573"}],"summary":"LangGraph Checkpoint: Unsafe JSON deserialization in checkpoint loading"}