CVE-2026-115883
LangGraph checkpoint savers provide Postgres- and SQLite-backed state persistence for LangGraph workflows and agents.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | langgraph-checkpoint-postgres | < 3.1.3 | 3.1.3 |
| pip | langgraph-checkpoint-sqlite | < 3.1.2 | 3.1.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-6hmw-9432-67qq
- 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
- https://github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres%3D%3D3.1.3
- https://github.com/langchain-ai/langgraph/releases/tag/checkpointsqlite%3D%3D3.1.2