CVE-2026-82052

The $regexFindAll expression can be used by an authenticated user who can run aggregation pipeline stages to crash a MongoDB server (mongod). Under certain specific conditions the regex match can start in the middle of a multi-code-unit character, triggering an assertion during query execution.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://jira.mongodb.org/browse/SERVER-127985	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mongodb:mongodb::::::::
	cpe:2.3:a:mongodb:mongodb::::::::
	cpe:2.3:a:mongodb:mongodb::::::::

History

16 Sep 2026, 20:40

Type	Values Removed	Values Added
References	~~() https://jira.mongodb.org/browse/SERVER-127985 -~~	() https://jira.mongodb.org/browse/SERVER-127985 - Issue Tracking, Vendor Advisory
CPE		cpe:2.3:a:mongodb:mongodb::::::::
First Time		Mongodb Mongodb mongodb

Information

Published : 2026-09-08 17:18

Updated : 2026-09-16 20:40

NVD link : CVE-2026-82052

Mitre link : CVE-2026-82052

CVE.ORG link : CVE-2026-82052

JSON object : View

Products Affected

mongodb

mongodb

CWE

CWE-617

Reachable Assertion

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