CVE-2026-82063

A use-after-free security issue in the cursor management component of MongoDB Server allows an authenticated user to cause a denial of service. Under specific timing conditions during cursor operations, a stale pointer to a freed resource may be retained and subsequently dereferenced during cursor cleanup, leading to a server process crash.

  • Published Sep 8, 2026
  • CVSS 6.0 medium
  • 0.4% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-82063 at the National Vulnerability Database