What’s Vulnerable › Vulnerabilities

CVE-2026-85093: Cheshire Cat AI Memory Collection Endpoint Information Disclosure

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-03 · updated 2026-09-10
• Weakness: CWE-863

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.

Affected products

• cheshire-cat-ai core: from 1.8.0 through 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

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