{"id":"CVE-2026-68578","title":"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","summary":"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, s…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-306"],"published":"2026-08-02","updated":"2026-08-02","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-68578","references":[{"url":"https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-6x73-v3rc-f57c","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/arcadedb-authentication-bypass-via-mcp-transport","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"ingestedAt":"2026-08-02T13:18:30.006Z","epss":0.00214,"epssPercentile":0.12029,"slug":"CVE-2026-68578","body":"## Overview\n\nArcadeDB 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}