{"id":"CVE-2026-104004","title":"MongoDB Server's collection validation feature may not properly handle certain expressions stored in a validator","summary":"MongoDB Server's collection validation feature may not properly handle certain expressions stored in a validator. In some cases, this can cause the server process to stop running when a document is later inserted. The behavior can occur …","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"vendor":"MongoDB","product":"MongoDB Server","affected":["server >= 8.3.0 < 8.3.13","server >= 8.0 < 8.0.34","server >= 9.0 < 9.0.4"],"published":"2026-10-13","updated":"2026-10-15","sourceUpdated":"2026-10-15T20:38:04.303","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104004","references":[{"url":"https://jira.mongodb.org/browse/SERVER-131412","label":"cna@mongodb.com"}],"tags":["nvd","cve.org"],"epss":0.00235,"epssPercentile":0.14364,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T17:49:50.492546Z"},"ingestedAt":"2026-10-13T16:35:46.738Z","slug":"CVE-2026-104004","body":"## Overview\n\nMongoDB Server's collection validation feature may not properly handle certain expressions stored in a validator. In some cases, this can cause the server process to stop running when a document is later inserted. The behavior can occur for authenticated users with write access.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}