Description
Cheshire Cat AI's GET /memory/collections/{collection_id}/points endpoint fails to apply per-user filtering when retrieving episodic memory points. Authenticated attackers with MEMORY:READ permission can retrieve all users' stored conversation messages and personal data by paginating through the collection using the offset cursor.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| cheshire-cat-ai | core | >= 1.8.0, <= 1.9.2 |
References
- https://github.com/cheshire-cat-ai/core
- https://github.com/cheshire-cat-ai/core/blob/1.9.2/core/cat/looking_glass/stray_cat.py
- https://github.com/cheshire-cat-ai/core/blob/1.9.2/core/cat/routes/memory/points.py#L350
- https://github.com/cheshire-cat-ai/core/issues/1136
- https://www.vulncheck.com/advisories/cheshire-cat-ai-memory-collection-endpoint-information-disclosure
- https://github.com/cheshire-cat-ai/core/issues/1136
Timeline
- Published
- Sep 3, 2026
- Last modified
- Sep 10, 2026
- NVD status
- Deferred