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MEDIUM · 5.3

CVE-2026-13074

An unauthenticated remote client can cause excessive CPU consumption on a MongoDB server by sending a specific combination of parameters to the awaitable hello command in exhaust mode. The server's ha...

Vulnerability Description

An unauthenticated remote client can cause excessive CPU consumption on a MongoDB server by sending a specific combination of parameters to the awaitable hello command in exhaust mode. The server's handling of this combination results in a response loop that bypasses normal throttling, allowing a small number of connections to degrade server availability.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW

Affected Products

VendorProductVersions
MongodbMongodb>= 7.0.0, < 7.0.39

Related Weaknesses (CWE)

CWE-770

References

FAQ

What is CVE-2026-13074?

CVE-2026-13074 is a vulnerability with a CVSS score of 5.3 (MEDIUM). An unauthenticated remote client can cause excessive CPU consumption on a MongoDB server by sending a specific combination of parameters to the awaitable hello command in exhaust mode. The server's ha...

How severe is CVE-2026-13074?

CVE-2026-13074 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13074?

Check the references section above for vendor advisories and patch information. Affected products include: Mongodb Mongodb.