# CVE-2026-114056: ArcadeDB authorization bypass in ALTER TYPE edge schema

Source: https://junglewise.ai/threats/cve-2026-114056-arcadedb-from-26-8-1-before-26-10-1-contains-an-authorization  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-21. Updated: 2026-10-21  
License: CC BY 4.0 with a link back

CVE-2026-114056 · Severity: medium · CVSS 4.3 · Published 2026-10-21

ArcadeDB is a graph database engine. A read-only user can bypass authorization controls and permanently modify edge type storage flags (lightweight and unique declarations) by sending a specially crafted SQL command, even though they lack the UPDATE_SCHEMA permission required for schema changes. This violates the documented permission model and could affect application behavior that depends on the declared storage format.

Technologies: [ArcadeData ArcadeDB](https://junglewise.ai/threats/technologies/arcadedb). Vendors: [ArcadeData](https://junglewise.ai/threats/vendors/arcadedata).

## Quick answers

**Is CVE-2026-114056 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-114056 being exploited in the wild.

**How severe is CVE-2026-114056?** Medium severity, with a CVSS score of 4.3, published 21 October 2026.

**Which products and versions are affected?** ArcadeData ArcadeDB 26.8.1 through 26.9.1.

**Is there a fix for CVE-2026-114056?** Yes: fixed in 26.10.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-114056 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-114056?** Check whether you run ArcadeData ArcadeDB at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 26.10.1

## Technical details

The vulnerability is an authorization bypass (CWE-862) in the ALTER TYPE statement parser. The edge-type setters setLightweight() and setUnique() in LocalEdgeType lack the checkForSchemaMutation() call that enforces UPDATE_SCHEMA permission. When ALTER TYPE is issued with only a WITH clause (no ALTER items), the per-item authorization loop is skipped and the unguarded setters are called directly, allowing a read-only authenticated user to persist schema changes. An attacker needs only a valid read-only database credential and network access to the HTTP, gRPC, or Bolt command API (enabled by default).

## Affected products

- ArcadeData ArcadeDB 26.8.1 through 26.9.1

## Timeline

- 2026-10-05: disclosed
- 2026-10-21: advisory

## References

- [https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-9c7g-grf7-j2r5](https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-9c7g-grf7-j2r5)
- [https://www.vulncheck.com/advisories/arcadedb-from-26.8.1-before-26.10.1-authorization-bypass-via-alter-type-with](https://www.vulncheck.com/advisories/arcadedb-from-26.8.1-before-26.10.1-authorization-bypass-via-alter-type-with)

## Related threats

- [ArcadeDB improper authorization in wire-protocol connections](https://junglewise.ai/threats/cve-2026-119577-arcadedb-before-26-10-2-contains-an-improper-authorization)
- [ArcadeDB authorization bypass in GraphQL schema endpoint](https://junglewise.ai/threats/cve-2026-119576-arcadedb-from-21-12-1-before-26-10-2-contains-an-authorization)
- [ArcadeDB server-side request forgery in LOAD CSV](https://junglewise.ai/threats/cve-2026-119575-arcadedb-from-26-8-1-before-26-10-2-contains-a-server-side)
- [ArcadeDB remote code execution in Gremlin Groovy engine](https://junglewise.ai/threats/cve-2026-114059-arcadedb-before-26-10-1-contains-a-remote-code-execution)
- [ArcadeDB Bolt protocol missing authorization](https://junglewise.ai/threats/cve-2026-114058-arcadedb-from-26-2-1-before-26-10-1-contains-a-missing)