All vulnerabilities

Servers and applications

CVE-2026-82066

A heap out-of-bounds read security issue exists in the query planning component of MongoDB Server. An authenticated user with database read and write privileges can trigger the security issue through crafted query operations, causing the server to read memory beyond allocated buffer boundaries. The revealed memory contents may be partially observable through diagnostic query statistics output.

Severity
Medium 5.3
Published
8 Sept 2026
Last changed
16 Sept 2026
Added to UpHeron
21 Oct 2026
Fixed in
7.0.41, 8.0.30, 8.3.9
Sources
NVD

Affected software

SoftwareAffected versions
MongoDBServers and applications · cpe:a:mongodb:mongodb
  • From 7.0.0 before 7.0.41
  • From 8.0.0 before 8.0.30
  • From 8.3.0 before 8.3.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-82066
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-82066