CVE-2026-67344

ArcadeDB before 26.7.2 fails to enforce the UPDATE_SCHEMA database permission on the ALTER TYPE ... CUSTOM and ALTER TYPE ... BUCKETSELECTIONSTRATEGY SQL operations, which map to setCustomValue and setBucketSelectionStrategy in LocalDocumentType. An authenticated user with only read access (e.g., a read-only API token) can submit these ALTER TYPE statements via the HTTP command endpoint to mutate a type's custom schema metadata and bucket-selection strategy, bypassing the documented updateSchema permission boundary and potentially corrupting schema metadata and record routing.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-8vr5-263f-x5r3
https://www.vulncheck.com/advisories/arcadedb-before-authentication-bypass-via-alter-type

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-01 13:17

Updated : 2026-08-31 20:30

NVD link : CVE-2026-67344

Mitre link : CVE-2026-67344

CVE.ORG link : CVE-2026-67344

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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