Auth bypass in Arcadedata Arcadedb
CVE-2026-93595
ArcadeDB before 26.9.1 contains an access control bypass vulnerability in the query_database tool exposed through the AI chat endpoints. The tool executes queries without binding the authenticated principal to DatabaseContext, causing per-type and per-bucket ACL checks to silently no-op and allowing authenticated users to read data they are explicitly denied at the per-type level. Attackers can prompt the AI assistant to execute queries against restricted types or buckets to retrieve sensitive data that would be rejected through normal query endpoints.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (31.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/ArcadeData/arcadedb/security/advisories/GHSA-chrr-vr3p-crcc (vendor-advisory)
- www.vulncheck.com/advisories/arcadedb-before-26.9.1-acl-bypass-via-query-databa… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-93595?
- CVE-2026-93595 is a medium-severity vulnerability in Arcadedata Arcadedb, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-09-18.
- How severe is CVE-2026-93595?
- Medium severity. CVSS v3 base score is 6.5 out of 10.