All vulnerabilities

Servers and applications

CVE-2026-8336

After invoking $_internalJsEmit, which is not intended to be directly accessible, or mapreduce command’s map function in a certain way, an authenticated user can subsequently crash mongod when the server-side JavaScript engine (through $where, $function, mapreduce reduce stage, etc.) is used also in a specific way, resulting in a post-authentication denial-of-service. This issue impacts MongoDB…

Severity
High 7.7
Published
13 May 2026
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.2.9, 8.3.2
Sources
NVD

Affected software

SoftwareAffected versions
MongoDBServers and applications · cpe:a:mongodb:mongodb
  • From 8.2.0 before 8.2.9
  • From 8.3.0 before 8.3.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-8336
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-8336