{"id":"CVE-2026-105806","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-105806","generatedAt":"2026-10-28T01:12:25.625Z","title":"In @payloadcms/plugin-mcp versions from 3.61.0 until 3.88.0, an authenticated user can manage MCP API keys outside the intended account, enabling privilege escalation through account takeover.","description":"Payload is a free and open source headless content management system. In @payloadcms/plugin-mcp versions from 3.61.0 until 3.88.0, an authenticated user can manage MCP API keys outside the intended account, enabling privilege escalation through account takeover. This issue is fixed in version 3.88.0.","published":"2026-10-06T16:17:06.000Z","lastModified":"2026-10-06T20:03:41.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":8.6,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-862"],"affected":[],"epss":{"score":0.00252,"percentile":0.16505,"date":"2026-10-26","history":[{"date":"2026-10-07","score":0.00252,"percentile":0.15265}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-06T16:17:06.000Z","detail":{"score":"8.6","severity":"HIGH","publishedAt":"2026-10-06T16:17:06.257Z"},"summary":"New CVE, high severity (CVSS 8.6)."}],"references":[{"url":"https://github.com/payloadcms/payload/commit/025581d8c5ed836039ad85397288a30f0d3c11c1","source":"security-advisories@github.com"},{"url":"https://github.com/payloadcms/payload/releases/tag/v3.88.0","source":"security-advisories@github.com"},{"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-2q76-m6w6-qgc6","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-105806","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}