LangGraph: Namespace prefix matching crosses segment boundaries in Postgres and SQLite stores

SummaryThe Postgres and SQLite stores persist hierarchical namespaces as a dot-joined string "memories", "alice" becomes memories.alice and scoped reads by matching that string with LIKE '%'. Because LIKE has no notion of the . separator, a scoped search or listnamespaces also matched sibling...

Incorrect Authorization

Overview langgraph-checkpoint-postgres is a Library with a Postgres implementation of LangGraph checkpoint saver. Affected versions of this package are vulnerable to Incorrect Authorization in the search or listnamespaces process. An attacker can access data from unintended namespaces by crafting...