Agent conversation, checkpoint or memory crosses ownership boundaries
Persisted agent state or its resume/export path is accessible or mutable by a principal outside its intended owner or sharing grant.
Candidate CWE: CWE-863
Test hypothesis#
Seed private state under A/B; prove owner access and direct cross-owner denial. As A, substitute the known B handle in an actual state, resume or export API and record the completed result.
Evidence required#
Save state ownership, effective worker principal, exact handle path, expected grant and newly returned canary or unauthorized mutation. Separate queue acceptance from completed effect.
Rule out false positives#
Intentionally shared threads, an authorized service performing delegated work, and content already provided by the caller do not establish a cross-owner violation.
Playbook and command references#
- AI state: memory, resumed work, retries and private caches — Test persistent context, task ownership, MCP request-state integrity, duplicate effects and caches across identities and time.
- Object, function, and property authorization — Turn identities, tenants, objects, roles, and lifecycle transitions into a reproducible permission matrix.
- RAG isolation: ingestion, retrieval, citations and revocation — Trace document authorization through vector search, generated answers, citation downloads, caches and sharing changes.
Find the associated command snippets
Referenced by these target playbooks#
Report checklist#
- Capture the affected version, configuration, identities, and object ownership.
- Preserve a valid baseline and a negative control.
- Reproduce the forbidden data access, action, or state change on controlled fixtures.
- Explain the intended security rule and why the observed behavior violates it.
- State prerequisites, uncertainty, cleanup, and the smallest demonstrated impact.
Conditional ATT&CK mapping#
No direct ATT&CK mapping selected. Record the weakness and demonstrated impact without forcing an adversary-behavior classification. See the mapping guide.