CVE-2026-82059

No fix known EPSS <1%CVSS 5.3

An internal aggregation expression in MongoDB Server was incorrectly registered as accessible to any authenticated user rather than being restricted to internal cluster operations. By crafting a malformed index specification within this expression, an authenticated user with read-only privileges could trigger an assertion failure in the index key generation code path. In certain build configurations, this assertion failure results in termination of the mongod process, causing a denial of service to all connected clients.

Published 2026-09-08 · CVE record · OSV

Products: mongodb_server

Distro releases