CVE-2026-75850

Medium

Description

ArcadeDB before 26.8.1 fails to bind the authenticated principal (setCurrentUser) on its batch and time-series HTTP handlers. Because no principal is bound on the worker thread, the engine's fine-grained per-type ACL layer (LocalBucket.checkPermissionsOnFile) does not execute for these handlers. In deployments that use per-type or per-group ACLs, a user with database access but only limited per-type permissions can read from and write to types they are not authorized to access by submitting requests to the batch/time-series endpoints. Deployments that rely solely on database-level access control are not affected.

SeverityMedium

CVSS4.2

Exploit probability—

ProductArcadedata Arcadedb

PublishedAug 18, 2026

First seenAug 18, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

ArcadeData arcadedb26.8.1 or later

Vendor advisories

github.com/ArcadeData/arcadedb/security/advisories/GHSA-c23x-pqcj-7hfm

Affected products

Product	Affected versions	Fixed in
ArcadeData arcadedb	v < 26.8.1	26.8.1

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.