EUVD-2026-29888
GHSA-pr63-cc36-q84h
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/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
Lifecycle Timeline
6DescriptionNVD
An issue in MongoDB Server's time-series collection implementation allows an authenticated user with database write privileges to trigger an out-of-bounds memory write in the mongod process. The issue results from an inconsistency in the internal field-name-to-index mapping within the time-series bucket catalog. Under certain conditions this can result in arbitrary code execution.
This issue impacts MongoDB Server v5.0 versions prior to 5.0.33, v6.0 versions prior to 6.0.28, v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
AnalysisAI
Out-of-bounds memory write in MongoDB Server's time-series collection feature enables arbitrary code execution by authenticated users with database write privileges. Affects all active release branches (5.0 through 8.3) when exploiting field-name-to-index mapping inconsistencies in the time-series bucket catalog. …
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RemediationAI
Within 24 hours: identify all MongoDB instances running versions 5.0-8.3 with time-series collections enabled; audit and revoke unnecessary database write privileges; review authentication logs for unauthorized access. Within 7 days: implement strict network segmentation isolating MongoDB from untrusted networks; rotate all database credentials and application service account passwords; disable time-series collections if not operationally required. …
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