Memory Management Vulnerability in MongoDB Server
CVE-2026-13056

7.1HIGH

Key Information:

Vendor

Mongodb
Status
Mongodb Server
Vendor
CVE Published:
22 July 2026

What is CVE-2026-13056?

The vulnerability in MongoDB Server allows an attacker to exploit the system by crafting queries that generate exceptionally large intermediate objects in memory. This results in the consumption of excessive resources, ultimately causing the server to experience an Out of Memory (OOM) error, leading to a crash. Proper validation of query expressions and limits on array sizes are necessary to mitigate the risks associated with this issue.

Affected Version(s)

MongoDB Server 8.0 < 8.0.28

MongoDB Server 8.3.0 < 8.3.7

References

https://jira.mongodb.org/browse/SERVER-124355

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

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