{"data":{"id":"d4f636f3-8f71-4149-9b3d-5de3a1067ae0","title":"GHSA-6hmw-9432-67qq: LangGraph: Namespace labels containing `.` reach other namespaces in Postgres and SQLite stores","summary":"The Postgres and SQLite stores in LangGraph joined namespace labels with `.`, so a label containing a dot, such as `(\"tenant.bob\",)`, mapped to the same stored namespace as `(\"tenant\", \"bob\")`. Although `put` rejected such labels, `get`, `search`, `delete`, `list_namespaces`, their async versions, and ops passed to `batch`/`abatch` did not, letting a caller read, overwrite or delete items in another namespace. All releases of `langgraph-checkpoint-postgres` before 3.1.3 and `langgraph-checkpoint-sqlite` before 3.1.2 are affected, while `InMemoryStore` is not.","solution":"Upgrade to `langgraph-checkpoint-postgres` 3.1.3 or `langgraph-checkpoint-sqlite` 3.1.2, which require `langgraph-checkpoint` 4.3.0. Stores outside this repository that turn namespaces into delimited text can call `langgraph.store.base.validate_op_namespace` for each op they run.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-6hmw-9432-67qq","publishedAt":"2026-10-23T22:06:44.000Z","cveId":"CVE-2026-115883","cweIds":null,"cvssScore":null,"cvssSeverity":"medium","severity":"medium","attackType":["other"],"issueType":"vulnerability","affectedPackages":["langgraph-checkpoint-sqlite@< 3.1.2 (fixed: 3.1.2)","langgraph-checkpoint-postgres@< 3.1.3 (fixed: 3.1.3)"],"affectedPackageNames":["langgraph-checkpoint-sqlite","langgraph-checkpoint-postgres"],"affectedPackageRefs":["pypi:langgraph-checkpoint-sqlite","pypi:langgraph-checkpoint-postgres"],"affectedVendors":["LangChain"],"affectedVendorsRaw":["LangGraph","langgraph-checkpoint-postgres","langgraph-checkpoint-sqlite","LangSmith Deployment"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0,"epssCheckedAt":"2026-10-24T00:09:31.237Z","kevDateAdded":null,"advisoryAliases":["GHSA-6hmw-9432-67qq"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":true,"disclosureDate":"2026-10-23T22:06:44.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality","integrity"],"aiComponentTargeted":"framework","llmSpecific":false,"classifierConfidence":0.9,"researchCategory":null,"atlasIds":null}}