CVE-2026-11933
HIGHPost-authentication use-after-free in server-side JavaScript BSON-to-array conversion
Title source: cnaDescription
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.
References (1)
Core 1
Core References
Scores
CVSS v3
8.8
EPSS
0.0034
EPSS Percentile
25.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (7)
MongoDB/MongoDB
4.4.0 - 4.4.30
MongoDB/MongoDB
5.0 - 5.0.33
MongoDB/MongoDB
6.0 - 6.0.28
MongoDB/MongoDB
7.0.0 - 7.0.36
MongoDB/MongoDB
8.0.0 - 8.0.25
MongoDB/MongoDB
8.2.0 - 8.2.10
MongoDB/MongoDB
8.3.0 - 8.3.3
Published
Jun 12, 2026
Tracked Since
Jun 12, 2026