UpHeron
All vulnerabilities

Servers and applications

CVE-2026-18698

An issue in MongoDB Server could allow an authenticated user with a limited database-scoped role to perform an action against protected system collections that should require more specific privileges. This could result in exposure of collection metadata and, on certain deployment configurations, unauthorized modification of system collection data.

Severity
Medium 5.3
Published
11 Aug 2026
Last changed
16 Sept 2026
Added to UpHeron
21 Oct 2026
Fixed in
7.0.40, 8.0.29, 8.3.8
Sources
NVD

Affected software

SoftwareAffected versions
MongoDBServers and applications · cpe:a:mongodb:mongodb
  • Version 9.1.0-alpha0
  • Version 9.0.0-alpha1
  • Version 9.0.0-alpha0
  • From 8.3.0 before 8.3.8
All 7 release lines
  • From 7.0.0 before 7.0.40
  • From 8.0.0 before 8.0.29
  • From 8.2.0 up to 8.2.12
  • From 8.3.0 before 8.3.8
  • Version 9.0.0-alpha0
  • Version 9.0.0-alpha1
  • Version 9.1.0-alpha0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-18698
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-18698