Data Modification Vulnerability in MongoDB Server
CVE-2026-18712

7.2HIGH

Key Information:

Vendor

Mongodb
Status
Mongodb Server
Vendor
CVE Published:
11 August 2026

What is CVE-2026-18712?

A flaw in MongoDB Server's Queryable Encryption maintenance operations enables authenticated users with access to one encrypted collection to inadvertently modify or destroy data in another collection. This vulnerability arises from inadequate validation of internal metadata references prior to executing operations across different namespaces, potentially compromising data integrity.

Affected Version(s)

MongoDB Server 8.3.0 < 8.3.8

MongoDB Server 8.0 < 8.0.29

MongoDB Server 7.0 < 7.0.40

References

https://jira.mongodb.org/browse/SERVER-130633

CVSS V4

Score:
7.2
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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