CVE-2026-85093CWE-863broken-access-control

CVE-2026-85093

Medium · published September 3, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
34.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00415 · 34.7th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-09-03T17:06Z
References (6)
https://github.com/cheshire-cat-ai/core · [email protected]https://github.com/cheshire-cat-ai/core/blob/1.9.2/core/cat/looking_glass/stray_cat.py · [email protected]https://github.com/cheshire-cat-ai/core/blob/1.9.2/core/cat/routes/memory/points.py#L350 · [email protected]https://github.com/cheshire-cat-ai/core/issues/1136 · [email protected]https://www.vulncheck.com/advisories/cheshire-cat-ai-memory-collection-endpoint-information-disclosure · [email protected]https://github.com/cheshire-cat-ai/core/issues/1136 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 04 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 03 SEP 01:04Z
    Cheshire Cat AI Memory Collection Endpoint Information Disclosure
    cvelistv5