Plaintext disclosure via unencrypted vector-search filter literals
Published Jun 9, 2026 · Updated Jun 9, 2026
Information disclosure in MongoDB Server allows remote authenticated users to expose encrypted-field literals through vector-search filters. Query analysis for the $vectorSearch aggregation stage passes literals referenced by encrypted fields to the server as plaintext instead of encrypting them for QE or CSFLE. Access requires low privileges and use of QE or CSFLE with an affected $vectorSearch filter, exposing the literal values to the server.
Summary
What happened
Information disclosure in MongoDB Server allows remote authenticated users to expose encrypted-field literals through vector-search filters. Query analysis for the $vectorSearch aggregation stage passes literals referenced by encrypted fields to the server as plaintext instead of encrypting them for QE or CSFLE. Access requires low privileges and use of QE or CSFLE with an affected $vectorSearch filter, exposing the literal values to the server.
The record
- CVE
- CVE-2026-9741
- Published
- Jun 9, 2026
- Updated
- Jun 9, 2026
- Vendor
- MongoDB
- Product
- MongoDB Server
- Classifications
- CWE-319
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 9, 2026CVE publishedPublication date reported by the CVE source.
- Jun 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=7.0.0 <7.0.35
- Affected versionversion=8.0.0 <8.0.24
- Affected versionversion=8.2.0 <8.2.10
- Affected versionversion=8.3.0 <8.3.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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