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CVE-2026-88032 Details

Description

A use-after-free in the reactive client-side encryption component of the MongoDB Java Driver can cause native resources to be freed while an affected encrypted operation is still using them when the operation is cancelled. A party able to cause such an operation to be cancelled may cause the hosting application process to terminate. Reaching the issue requires an affected reactive encryption configuration that retrieves KMS credentials on demand.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://jira.mongodb.org/browse/JAVA-6276	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	[email protected]

Affected Products

Product	Versions
mongodb java driver	>= 4.2.0, < 5.11.1
CPE cpe:2.3:a:mongodb:java_driver::::::mongodb::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Sep 16, 2026	Initial Analysis	[email protected]
Sep 11, 2026	CVE Modified	[email protected]
Sep 10, 2026	New CVE Received	[email protected]
Sep 10, 2026	CVE Modified	CISA-ADP