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Vulnerability · Published Sep 15, 2026 · Assigned by GitHub_M

CVE-2026-54076ArcadeDB: Read-only users can mutate database schema (incomplete fix of CVE-2026-44221)

High 8.1

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 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.5%top 56.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

ArcadeDB is a Multi-Model DBMS. Prior to 26.6.1, the fix for CVE-2026-44221 added an UPDATE_SCHEMA authorization check only to LocalDocumentType.createProperty, while the remaining public schema mutators in engine/src/main/java/com/arcadedb/schema/LocalDocumentType.java and engine/src/main/java/com/arcadedb/schema/LocalProperty.java remained unchecked. An authenticated identity, including a read-only API token without UPDATE_SCHEMA permission, can use DROP PROPERTY, ALTER TYPE, or ALTER PROPERTY through the database command/query HTTP endpoints to rename types, change inheritance, alter aliases or buckets, drop properties, and change property constraints. The issue does not directly disclose or write record data, but unauthorized schema mutation can corrupt the meaning of stored records and breach the documented permission model. This issue is fixed in version 26.6.1.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavencom.arcadedb:arcadedb-engine26.6.1GHSA-vg6x-6pg9-6qwg

Affected products (as reported)

VendorProductVersions
ArcadeData arcadedb < 26.6.1
com.arcadedb arcadedb-engine < 26.6.1

Weakness: CWE-862, CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

References