CVE-2026-11933

EUVD-2026-36373
A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example, via $where or $function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
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: 30%
Affected Products (NVD)
VendorProductVersion
mongodbmongodb
4.4.0 ≤
𝑥
< 4.4.31
mongodbmongodb
5.0.0 ≤
𝑥
< 5.0.34
mongodbmongodb
6.0.0 ≤
𝑥
< 6.0.29
mongodbmongodb
7.0.0 ≤
𝑥
< 7.0.37
mongodbmongodb
8.0.0 ≤
𝑥
< 8.0.26
mongodbmongodb
8.2.0 ≤
𝑥
< 8.2.11
mongodbmongodb
8.3.0 ≤
𝑥
< 8.3.4
𝑥
= Vulnerable software versions