# CVE-2026-67356 — ArcadeData arcadedb

> As of 2026-08-03, CVE-2026-67356 is a HIGH-severity vulnerability in ArcadeData arcadedb, CVSS v3.1 8.8, EPSS 0.2% (15.9th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-67356 as of 2026-08-03; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-03

## What is CVE-2026-67356?

ArcadeDB before 26.7.3 binds the real LocalDatabase object into JavaScript trigger contexts with HostAccess.ALL, allowing schema-admins to call getSecurity().createUser() without permission checks. Attackers with UPDATE_SCHEMA permission can create triggers that execute JavaScript to create server-wide admin users, escalating privileges beyond their authorization level.

The record classifies CVE-2026-67356 under weakness class [CWE-269](https://intel.threadlinqs.com/cwe/CWE-269). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 64 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.8 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **CVSS v4.0 base score:** 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 15.9% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-02, last modified 2026-08-03

## Is CVE-2026-67356 being exploited?

It currently carries a trending score of 33 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **ArcadeData**: arcadedb

## How to fix CVE-2026-67356

No vendor patch reference has been recorded for CVE-2026-67356 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-67356

No threat campaign in the Threadlinqs corpus currently references CVE-2026-67356, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-08-04. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com — vendor advisory](https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-38pf-6hp2-pxww)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/arcadedb-before-privilege-escalation-via-javascript-trigger)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-67356
Full detection coverage and IOCs for threats exploiting CVE-2026-67356 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp