Answer in brief
CVE-2026-115883 records a Medium severity (CVSS 6.0) vulnerability in LangGraph: Namespace labels containing `.` reach other namespaces in Postgres and SQLite stores. The current sources do not mark it as known exploited. The current feed maps langchain-ai/langgraph (generic), langchain-ai/langgraph-checkpoint-postgres (generic), langchain-ai/langgraph-checkpoint-sqlite (generic), langgraph-checkpoint-postgres (pip) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps langchain-ai/langgraph (generic), langchain-ai/langgraph-checkpoint-postgres (generic), langchain-ai/langgraph-checkpoint-sqlite (generic), langgraph-checkpoint-postgres (pip) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| langchain-ai/langgraphgeneric | <1.2.15 | 1.2.15 |
| langchain-ai/langgraph-checkpoint-postgresgeneric | <3.1.3 | 3.1.3 |
| langchain-ai/langgraph-checkpoint-sqlitegeneric | <3.1.2 | 3.1.2 |
| langgraph-checkpoint-postgrespip | <3.1.3 | 3.1.3 |
| langgraph-checkpoint-sqlitepip | <3.1.2 | 3.1.2 |
Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 23, 2026
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.
Quoted source text, attributed separately from HOL analysis.