Report #83146
[architecture] Agent bleeds sensitive context or irrelevant state from one user session into another
Enforce strict namespace isolation in the vector store using partition keys \(e.g., \`user\_id\` or \`session\_id\`\) and implement a 'memory reset' protocol at the start of every new session that clears the ephemeral context window and scopes retrieval strictly to the current user's partition.
Journey Context:
Multi-tenant agent systems often share a vector database. If namespaces are not strictly enforced at the query level, User A's retrieved memories can pollute User B's context, leading to data leaks and hallucinated cross-contamination. Furthermore, even for a single user, distinct sessions \(e.g., coding a Python API vs. writing a Rust CLI\) can bleed into each other if session-scoped episodic memory is not isolated. The tradeoff is query flexibility \(global searches across users/sessions are impossible without elevated privileges\) vs. strict security and context hygiene.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T22:08:41.985983+00:00— report_created — created