CVE-2026-120824

EUVD-2026-122840
A use-after-free in the time-series collection component of MongoDB Server can occur when the server validates a time-series bucket document during a write. The condition can be caused by an authenticated user with privileges to write bucket documents directly, and may result in the server terminating unexpectedly or, under certain conditions, arbitrary code execution in the context of the server process.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
mongodbCNA
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
mongodbmongodb
9.0.0 ≤
𝑥
< 9.0.7
CNA
mongodbmongodb
8.3.0 ≤
𝑥
< 8.3.16
CNA
mongodbmongodb
8.0.0 ≤
𝑥
< 8.0.37
CNA
mongodbmongodb
7.0.0 ≤
𝑥
< 7.0.48
CNA