CVE-2026-9741

MEDIUM

Client side encryption fails to encrypt values in a $vectorSearch

Title source: cna

Description

A bug in query analysis processing of the $vectorSearch aggregation stage for Queryable Encryption (QE) or Client-Side Field Level Encryption (CSFLE) results in literal values for encrypted fields within the $vectorSearch stage filter expressions to be sent to the server as plaintext instead of ciphertext.

References (1)

Core 1

Core References

https://jira.mongodb.org/browse/SERVER-123507

Scores

CVSS v3 6.5

EPSS 0.0010

EPSS Percentile 0.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-319

Status published

Products (4)

MongoDB/MongoDB Server 7.0.0 - 7.0.35

MongoDB/MongoDB Server 8.0.0 - 8.0.24

MongoDB/MongoDB Server 8.2.0 - 8.2.10

MongoDB/MongoDB Server 8.3.0 - 8.3.3

Published Jun 09, 2026

Tracked Since Jun 10, 2026