{"uuid": "fab9123b-8398-4f9f-95c7-83b16174f7fd", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-54052", "type": "seen", "source": "https://bsky.app/profile/offseq.bsky.social/post/3mqqfn6iw5w2z", "content": "CRITICAL: czlonkowski n8n-mcp <2.56.1 lets tenants access & delete other tenants' workflow backups in multi-tenant HTTP mode. Upgrade to 2.56.1+ to secure sensitive data. https://radar.offseq.com/threat/cve-2026-54052-cwe-639-authorization-bypass-throug-04ca76ef25ff4df2 #OffSeq #CVE", "creation_timestamp": "2026-07-16T04:30:29.334274Z"}