Vulnerability in MongoDB Server's Aggregation Framework
CVE-2026-18697

8.7HIGH

Key Information:

Vendor

Mongodb
Status
Mongodb Server
Vendor
CVE Published:
11 August 2026

What is CVE-2026-18697?

An issue in the aggregation framework of MongoDB Server may allow an unauthorized attacker to send a specially crafted aggregation command. This could cause the mongos router process to terminate unexpectedly, leading to disruption of client connections managed by the affected instance. Proper security measures are essential to safeguard against this potential exploitation, which emphasizes the importance of timely software updates and vulnerability management.

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-130110

CVSS V4

Score:
8.7
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

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