CVE-2026-82063 PUBLISHED

Use-After-Free in MongoDB Server Cursor Management Component Leads to Denial of Service

Assigner: mongodb
Reserved: 27.08.2026 Published: 08.09.2026 Updated: 08.09.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 6

Product Status

Vendor MongoDB
Product MongoDB Server
Versions Default: unaffected
  • affected from 8.3.0 to 8.3.9 (excl.)
  • affected from 8.0.0 to 8.0.30 (excl.)
  • affected from 7.0.0 to 7.0.41 (excl.)

References

Problem Types

  • CWE-416: Use After Free CWE