CVE-2026-8053

EUVD-2026-29888
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.
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: 19%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
mongodbmongodb
5.0 ≤
𝑥
< 5.0.33
CNA
mongodbmongodb
6.0 ≤
𝑥
< 6.0.28
CNA
mongodbmongodb
7.0 ≤
𝑥
< 7.0.34
CNA
mongodbmongodb
8.0 ≤
𝑥
< 8.0.23
CNA
mongodbmongodb
8.2 ≤
𝑥
< 8.2.9
CNA
mongodbmongodb
8.3 ≤
𝑥
< 8.3.2
CNA