{"id":"CVE-2026-115883","revision":"20d124668ce944df8f3e632f81fee71c","records":[{"revision":"20d124668ce944df8f3e632f81fee71c","observedAt":"2026-10-23T22:48:20.692+00:00","statement":{"source":"cve-program","id":"CVE-2026-115883","aliases":[],"title":"LangGraph: Namespace labels containing `.` reach other namespaces in Postgres and SQLite stores","description":"LangGraph checkpoint savers provide Postgres- and SQLite-backed state persistence for LangGraph workflows and agents. Prior to langgraph-checkpoint-postgres 3.1.3 and langgraph-checkpoint-sqlite 3.1.2, PostgresStore, AsyncPostgresStore, SqliteStore, and AsyncSqliteStore flatten namespace labels with \".\".join(namespace), while BaseStore validates labels only for put and aput. Unvalidated dotted labels passed through get, search, delete, list_namespaces, their asynchronous equivalents, or direct batch and abatch operations can resolve to another tenant's stored namespace, allowing cross-namespace reads, overwrites, or deletion. InMemoryStore is not affected because it compares namespace tuples. This issue is fixed in langgraph-checkpoint-postgres 3.1.3 and langgraph-checkpoint-sqlite 3.1.2.","state":0,"publishedAt":"2026-10-23T21:12:34.523+00:00","modifiedAt":"2026-10-23T21:12:34.523+00:00","affected":[{"ecosystem":"Vendor product","name":"langgraph","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"langchain-ai\",\n                    \"product\": \"langgraph\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.2.15\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"langgraph-checkpoint-postgres","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"langchain-ai\",\n                    \"product\": \"langgraph-checkpoint-postgres\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.1.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"langgraph-checkpoint-sqlite","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"langchain-ai\",\n                    \"product\": \"langgraph-checkpoint-sqlite\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.1.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","score":6,"severity":"MEDIUM"}],"references":["https://github.com/langchain-ai/langgraph/security/advisories/GHSA-6hmw-9432-67qq","https://github.com/langchain-ai/langgraph/pull/9217","https://github.com/langchain-ai/langgraph/commit/bfcfea554ed5c7f7be562cebf8825e911b493ab1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115883","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-115883","identifiers":["CVE-2026-115883"]},"retained":false,"historicalAffected":[]}],"coverage":[]}