UpHeron
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Servers and applications

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 handling of this combination results in a response loop that bypasses normal throttling, allowing a small number of connections to degrade server availability.

Severity
Medium 6.9
Published
22 Jul 2026
Last changed
18 Aug 2026
Added to UpHeron
21 Oct 2026
Fixed in
7.0.39, 8.0.28, 8.2.12, 8.3.7
Sources
NVD

Affected software

SoftwareAffected versions
MongoDBServers and applications · cpe:a:mongodb:mongodb
  • From 7.0.0 before 7.0.39
  • From 8.0.0 before 8.0.28
  • From 8.2.0 before 8.2.12
  • From 8.3.0 before 8.3.7

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-13074
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-13074