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CVE Vulnerability Details :
CVE-2026-11933
PUBLISHED
More InfoOfficial Page
Assigner-mongodb
Assigner Org ID-a39b4221-9bd0-4244-95fc-f3e2e07f1deb
View Known Exploited Vulnerability (KEV) details
Published At-12 Jun, 2026 | 01:57
Updated At-13 Jun, 2026 | 03:55
Rejected At-
▼CVE Numbering Authority (CNA)
Post-authentication use-after-free in server-side JavaScript BSON-to-array conversion

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.

Affected Products
Vendor
MongoDB, Inc.MongoDB
Product
MongoDB
Default Status
unaffected
Versions
Affected
  • From 8.3.0 through 8.3.3 (semver)
  • From 8.2.0 through 8.2.10 (semver)
  • From 8.0.0 through 8.0.25 (semver)
  • From 7.0.0 through 7.0.36 (semver)
  • From 6.0 through 6.0.28 (semver)
  • From 5.0 through 5.0.33 (semver)
  • From 4.4.0 through 4.4.30 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-787CWE-787: Out-of-bounds Write
Type: CWE
CWE ID: CWE-787
Description: CWE-787: Out-of-bounds Write
Metrics
VersionBase scoreBase severityVector
3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.08.7HIGH
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
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 4.0
Base score: 8.7
Base severity: HIGH
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://jira.mongodb.org/browse/SERVER-128125
N/A
Hyperlink: https://jira.mongodb.org/browse/SERVER-128125
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found