UpHeron
All vulnerabilities

Servers and applications

CVE-2026-13055

The `$_internalIndexKey` aggregation expression can be used by any authenticated user to crash a MongoDB server (mongod). The expression fails to handle compound wildcard index specifications, triggering an internal consistency check that aborts the server process. The user must be able to run an aggregation pipeline.

Severity
High 7.1
Published
22 Jul 2026
Last changed
5 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-2026-13055
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-13055