Document Skipping Issue in MongoDB Affects Data Processing
CVE-2026-9748

7.1HIGH

Key Information:

Vendor

Mongodb
Status
Mongodb Server
Vendor
CVE Published:
9 June 2026

What is CVE-2026-9748?

An issue in MongoDB arises when the $_internalConvertBucketIndexStats stage improperly utilizes PauseExecution as a method to skip documents during index stats conversion failures. This misapplication leads to unexpected behavior where the TeeBuffer encounters an invalid PauseExecution signal, resulting in a system crash. Such a vulnerability highlights the critical necessity for proper signal management within MongoDB's processing pipelines.

Affected Version(s)

MongoDB Server 8.3.0 < 8.3.3

MongoDB Server 8.2.0 < 8.2.10

MongoDB Server 8.0.0 < 8.0.10

References

https://jira.mongodb.org/browse/SERVER-123951

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.