Auth bypass in Arcadedata Arcadedb
CVE-2026-76223
ArcadeDB (com.arcadedb) versions 26.7.3 and earlier fail to enforce the UPDATE_SCHEMA permission check when a DEFINE FUNCTION statement targets an already-existing function library. A user with only database access can add or overwrite SQL or Cypher functions in an existing library and persist the change, enabling tampering with admin-defined function logic. The issue is fixed in 26.8.1. (JavaScript functions still trigger the UPDATE_SECURITY check and are not affected.)
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
EPSS exploit prediction
EPSS: 0.004 (26.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/ArcadeData/arcadedb/security/advisories/GHSA-rv64-62hr-wv2p (vendor-advisory)
- www.vulncheck.com/advisories/arcadedb-before-permission-bypass-via-define-funct… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-76223?
- CVE-2026-76223 is a high-severity vulnerability in Arcadedata Arcadedb, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-08-19.
- How severe is CVE-2026-76223?
- High severity. CVSS v3 base score is 7.1 out of 10.