{"cve":"CVE-2026-71433","nvd":{"published":"2026-08-06T22:18:30.107","modified":"2026-09-10T20:41:33.140","status":"Awaiting Analysis","description":"LangGraph Checkpoint Postgres and SQLite Checkpoint are the Postgres and SQLite implementations of LangGraph's checkpoint saver. Prior to 3.1.1, the langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite packages persisted hierarchical namespaces as a dot joined string and scoped reads by matching that string as a simple prefix pattern, so a read scoped to one namespace could also match a sibling namespace whose flattened form shares the same leading characters, or a namespace label containing unescaped pattern metacharacters, allowing an authenticated caller to retrieve stored items belonging to another tenant or user through an ordinary scoped search or list namespaces call, with no crafted input required. This issue is fixed in versions 3.1.1 of langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","score":5.3},"cwes":["CWE-200","CWE-863"],"references":["https://github.com/langchain-ai/langgraph/commit/66ebe1a0da921e73f0f9f879ba105d314c079f7c","https://github.com/langchain-ai/langgraph/pull/8478","https://github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres%3D%3D3.1.1","https://github.com/langchain-ai/langgraph/releases/tag/checkpointsqlite%3D%3D3.1.1","https://github.com/langchain-ai/langgraph/security/advisories/GHSA-47pj-3jcm-6whg"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:47:54.990491175+00:00"},"epss":{"cve":"CVE-2026-71433","score":0.00363,"percentile":0.30163,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-47pj-3jcm-6whg","url":"https://osv.dev/vulnerability/GHSA-47pj-3jcm-6whg","summary":"LangGraph: Namespace prefix matching crosses segment boundaries in Postgres and SQLite stores","modified":"2026-08-10T11:40:56.459555624Z","packages":[{"ecosystem":"PyPI","name":"langgraph-checkpoint-postgres","purl":"pkg:pypi/langgraph-checkpoint-postgres","ranges":["<3.1.1"],"fixed":["3.1.1"]},{"ecosystem":"PyPI","name":"langgraph-checkpoint-sqlite","purl":"pkg:pypi/langgraph-checkpoint-sqlite","ranges":["<3.1.1"],"fixed":["3.1.1"]}]},{"id":"PYSEC-2026-3635","url":"https://osv.dev/vulnerability/PYSEC-2026-3635","summary":"LangGraph: Namespace prefix matching crosses segment boundaries in Postgres and SQLite stores","modified":"2026-08-10T11:40:56.459555624Z","packages":[{"ecosystem":"PyPI","name":"langgraph-checkpoint-postgres","purl":"pkg:pypi/langgraph-checkpoint-postgres","ranges":["<3.1.1"],"fixed":["3.1.1"]}]},{"id":"PYSEC-2026-3636","url":"https://osv.dev/vulnerability/PYSEC-2026-3636","summary":"LangGraph: Namespace prefix matching crosses segment boundaries in Postgres and SQLite stores","modified":"2026-08-10T11:40:56.459555624Z","packages":[{"ecosystem":"PyPI","name":"langgraph-checkpoint-sqlite","purl":"pkg:pypi/langgraph-checkpoint-sqlite","ranges":["<3.1.1"],"fixed":["3.1.1"]}]}],"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."]}