What is CVE-2026-68578?

CVE-2026-68578 is a high-severity vulnerability in Arcadedata Arcadedb, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-08-02.

How severe is CVE-2026-68578?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Arcadedata Arcadedb

CVE-2026-68578

ArcadeDB versions before 26.7.3 fail to bind the authenticated principal in the MCP HTTP transport, causing all engine permission checks to silently pass as no-ops. Non-root MCP-allowed users can perform arbitrary database writes, DDL, schema mutations, and execute arbitrary JavaScript code via the query tool.

Vulnerability class: Broken Authentication

EPSS: 0.002 (11.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Arcadedata Arcadedb — versions 0, 26.7.3

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-68578?: CVE-2026-68578 is a high-severity vulnerability in Arcadedata Arcadedb, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-08-02.
How severe is CVE-2026-68578?: High severity. CVSS v3 base score is 7.5 out of 10.