CVE-2026-76223

ArcadeDB before 26.8.1 Permission Bypass via DEFINE FUNCTION

HIGH
7.1
CVSS Score
Published: August 19, 2026 at 02:02 PM UTC
Updated: September 8, 2026 at 08:49 PM UTC
1 product affected across 1 vendorArcadeDB

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Severity
HIGH7.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 26.8.1
Vendor states this is fixed in 26.8.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862

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