Vulnerability · Published Aug 19, 2026 · Assigned by VulnCheck

CVE-2026-76223ArcadeDB before 26.8.1 Permission Bypass via DEFINE FUNCTION

High 7.1

In plain English

A high-severity missing authorization in arcadedb from ArcadeData. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.4%top 71.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.)

Affected products (as reported)

Vendor	Product	Versions
ArcadeData	arcadedb	0 – before 26.8.1

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

References

GitHub Security Advisory (GHSA-rv64-62hr-wv2p) vendor-advisory
VulnCheck Advisory: ArcadeDB before 26.8.1 Permission Bypass via DEFINE FUNCTION third-party-advisory