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Change History

{"timestamp":"2026-08-11T20:26:08.854963Z","id":"CVE-2026-18692","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

An issue in MongoDB Server's handling of timeseries bucket lifecycle could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed. Subsequent operations could then result in a server crash or, potentially, execution of unintended code.

AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-416

https://jira.mongodb.org/browse/SERVER-129887

[{"vendor":"MongoDB","product":"MongoDB Server","defaultStatus":"unaffected","versions":[{"version":"8.3.0","lessThan":"8.3.8","versionType":"semver","status":"affected"}]}]