{"id":"CVE-2026-1850","aliases":["BIT-mongodb-2026-1850","EUVD-2026-6754","GHSA-v4j3-xhwp-3v3w","UBUNTU-CVE-2026-1850"],"status":"published","title":"An authorized user may disable the MongoDB server by issuing a certain type of complex query due to boolean expression simplification","description":"Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00288,"percentile":0.215,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-770"],"published":"2026-02-10T18:49:32Z","modified":"2026-10-28T10:51:02Z","fixes":[{"ecosystem":"Bitnami","package":"mongodb","fixed_in":["8.0.18","8.2.4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"mongodb","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.0.18"},{"introduced":"8.2.0"},{"fixed":"8.2.4"}]}]}],"products":[{"vendor":"mongodb","product":"mongodb"},{"vendor":"mongodb inc","product":"mongodb server"},{"vendor":"mongodb, inc.","product":"mongodb server"}],"references":[{"url":"https://jira.mongodb.org/browse/SERVER-114126","tags":["Vendor 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Crash.","status":"published","published":"2026-02-10T18:49:32.084Z","modified":"2026-10-28T10:51:02.759354274Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:44:58.024074Z"},{"id":"UBUNTU-CVE-2026-1850","description":"Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.","status":"withdrawn","published":"2026-02-10T19:15:00Z","modified":"2026-02-23T07:09:44.721713Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T16:56:01.334185Z"},{"id":"BIT-mongodb-2026-1850","title":"An authorized user may disable the MongoDB server by issuing a certain type of complex query due to boolean expression simplification","description":"Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.","status":"published","published":"2026-02-26T08:47:43.39Z","modified":"2026-09-08T08:48:14.208770986Z","updated_at":"2026-11-02T15:28:33.469426Z"}]}}