{"id":"CVE-2026-102242","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-102242","generatedAt":"2026-10-28T01:03:02.209Z","title":"Improper link resolution (CWE-59 / CWE-22) in the allowedLocalRoots path validation in Google MCP Toolbox for Databases versions 1.2.0 through 1.9.0 allows a remote authenticated attacker with tool execution permissions to bypass directory boundary…","description":"Improper link resolution (CWE-59 / CWE-22) in the allowedLocalRoots path validation in Google MCP Toolbox for Databases versions 1.2.0 through 1.9.0 allows a remote authenticated attacker with tool execution permissions to bypass directory boundary restrictions via symbolic links. Because path validation checks directories lexically without resolving symbolic links first, an attacker can access or overwrite arbitrary local files located outside the permitted root directories.","published":"2026-09-29T18:17:07.000Z","lastModified":"2026-09-29T21:36:40.000Z","status":"Awaiting Analysis","sourceIdentifier":"cve-coordination@google.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-22","CWE-59"],"affected":[],"epss":{"score":0.00369,"percentile":0.30541,"date":"2026-10-26","history":[{"date":"2026-09-30","score":0.00369,"percentile":0.28358}]},"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 (0.37%). 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":"2026-09-29T18:17:07.000Z","detail":{"score":"8.6","severity":"HIGH","publishedAt":"2026-09-29T18:17:06.887Z"},"summary":"New CVE, high severity (CVSS 8.6)."}],"references":[{"url":"https://github.com/googleapis/mcp-toolbox/pull/3810","source":"cve-coordination@google.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-102242","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."}