CVE-2026-11933

HIGH EPSS 30.2%
Published Jun 12, 20262w ago · Modified Jun 22, 20261w ago
8.7 CVSS 4.0
High
Find Similar
Published Jun 12, 2026 2w ago
Last Modified Jun 22, 2026 1w ago

Description

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.

CVSS Details

Base Score
8.7
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
30.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-416 Use After Free Memory Safety
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 7

VendorProductVersionRange
mongodbmongodb*≥4.4.0  –  <4.4.31
mongodbmongodb*≥5.0.0  –  <5.0.34
mongodbmongodb*≥6.0.0  –  <6.0.29
mongodbmongodb*≥7.0.0  –  <7.0.37
mongodbmongodb*≥8.0.0  –  <8.0.26
mongodbmongodb*≥8.2.0  –  <8.2.11
mongodbmongodb*≥8.3.0  –  <8.3.4

References 1

  • jira.mongodb.org https://jira.mongodb.org/browse/SERVER-128125
    PatchVendor Advisory

Remediation

  • jira.mongodb.org https://jira.mongodb.org/browse/SERVER-128125
    PatchVendor Advisory