CVE-2026-9740

HIGH EPSS 26.4%
Published Jun 9, 20263w ago · Modified Jun 17, 20262w ago
8.7 CVSS 4.0
High
Find Similar
Published Jun 9, 2026 3w ago
Last Modified Jun 17, 2026 2w ago

Description

A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially crafted message. The BSON validator's handling of certain nested binary data structures permits uncontrolled mutual recursion between validation functions, where each re-entry resets internal depth tracking.

CVSS Details

Base Score
8.7
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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 None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
26.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-674

Affected Products 4

VendorProductVersionRange
mongodbmongodb*≥7.0.0  –  <7.0.35
mongodbmongodb*≥8.0.0  –  <8.0.24
mongodbmongodb*≥8.2.0  –  <8.2.10
mongodbmongodb*≥8.3.0  –  <8.3.3

References 1

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.