CVE-2026-9741

7.1 highEPSS 0.1%

High (7.1) in mongodb mongodb. EPSS 0.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

7.1 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

6.5 medium

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

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 0% of CVEs (scores of 2026-10-31)
CWE: CWE-319
Published: 2026-06-09
Modified: 2026-07-23
Record from: the NVD, synced 2026-10-19

Affected

mongodb:mongodb

References

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

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