{"id":"CVE-2026-120814","aliases":[],"cve":{"records":[{"id":"CVE-2026-120814","source":"mongodb","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-11-02T22:54:26.669Z","published":"2026-11-10T20:12:13.822Z","modified":"2026-11-13T20:15:47.198Z"}],"publishers":[{"name":"mongodb","role":"CNA","organizationId":"a39b4221-9bd0-4244-95fc-f3e2e07f1deb","modified":"2026-11-10T20:12:13.822Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-13T20:15:47.198Z"}],"references":[{"url":"https://jira.mongodb.org/browse/SERVER-133600","tags":[],"source":"mongodb"}],"weaknesses":[{"id":"CWE-250","description":"CWE-250: Execution with Unnecessary Privileges","source":"mongodb"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-13T20:15:34.501270Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"MultiUpdateCoordinator state replay lets a shard administrator create a persistent cluster root user","titleSource":"mongodb","descriptionSource":"mongodb","description":"An improper privilege management issue in the sharding subsystem of MongoDB Server may allow a user holding certain shard-level administrative privileges to cause persisted internal coordination state to be reprocessed with elevated internal authority. Because that state is trusted rather than re-validated, operations may be carried out beyond the user's authorized scope, including changes to cluster-wide security configuration. Successful triggering this issue requires an authenticated session directly against a cluster member and can result in unauthorized access to and modification of data across the cluster.","score":7.5,"severity":"high","published":"2026-11-10T20:12:13.822Z","modified":"2026-11-13T20:15:47.198Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"MongoDB","name":"MongoDB Server","platforms":[],"versions":[{"version":"9.0.0","status":"affected","lessThan":"9.0.7","versionType":"semver"},{"version":"8.3.0","status":"affected","lessThan":"8.3.16","versionType":"semver"},{"version":"8.0.0","status":"affected","lessThan":"8.0.37","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"mongodb","url":"https://www.cve.org/CVERecord?id=CVE-2026-120814"}],"remediation":[],"references":["https://jira.mongodb.org/browse/SERVER-133600"],"sources":[{"name":"CVE","id":"CVE-2026-120814","modified":"2026-11-13T20:15:47.198Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-120814"}],"assessments":[{"source":"mongodb","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.5},{"source":"mongodb","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":7.2}],"sourceAffected":[],"observedAt":"2026-11-13T20:42:57.813Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T02:25:31.038Z"},"coverage":[{"source":"NVD","status":"refresh-failed","attemptedAt":"2026-11-13T21:11:28.256Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-13T20:55:34.921Z","attemptedAt":"2026-11-13T20:55:34.921Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-13T20:55:34.890Z","attemptedAt":"2026-11-13T20:55:34.890Z"},{"source":"EPSS","status":"available","checkedAt":"2026-11-13T20:55:34.909Z","attemptedAt":"2026-11-13T20:55:34.909Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-122829","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-122829","modified":"Nov 10, 2026, 8:12:13 PM","score":7.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","checkedAt":"2026-11-13T20:55:34.890Z"},{"source":"FIRST EPSS","id":"CVE-2026-120814","url":"https://www.first.org/epss/","probability":0.00365,"percentile":0.30813,"date":"2026-11-13","checkedAt":"2026-11-13T20:55:34.909Z"},{"source":"GitHub Advisory Database","id":"GHSA-4h4m-qr7q-h832","url":"https://github.com/advisories/GHSA-4h4m-qr7q-h832","modified":"2026-11-10T21:34:33Z","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-13T20:55:34.921Z"}],"aiSummary":{"text":"MongoDB Server versions 9.0.0 to 9.0.7, 8.3.0 to 8.3.16, and 8.0.0 to 8.0.37 have an improper privilege management issue, allowing a shard administrator to create a persistent cluster root user with elevated authority. This requires an authenticated session against a cluster member. The issue may result in unauthorized access to and modification of data across the cluster.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-12T10:46:10.838Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-120814"}]}}