High 7.5Published Aug 2, 2026

CVE-2026-68578ArcadeDB before 26.7.3 Authentication Bypass via MCP Transport

Updated under an hour ago (Oct 28, 2026, 7:50 AM ET)

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It affects ArcadeData arcadedb. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for ArcadeData arcadedb

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-306
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Aug 3, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ArcadeData arcadedb arcadedata:arcadedb (from the name)	before 26.7.3; 26.7.3 not affected	CNA record

References

References

https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-6x73-v3rc-f57c	vendor-advisory
https://www.vulncheck.com/advisories/arcadedb-authentication-bypass-via-mcp-transport	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.