Skip to content
OpenAdvisories
Medium · 5.3 CVE-2026-82063 EUVD-2026-72950GHSA-6pwv-5gr2-9rh2

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

Published Sep 8, 2026 · Updated Sep 8, 2026 · Assigned by mongodb

Description

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.

Affected products

VendorProductAffectedFixed
MongoDB MongoDB Server 8.3.0 – < 8.3.9, 8.0.0 – < 8.0.30, 7.0.0 – < 7.0.41 8.3.9

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu Pro 20.04 LTS mongodb No fix yet —
Ubuntu Pro 18.04 LTS mongodb No fix yet —
Ubuntu Pro 16.04 LTS mongodb No fix yet —
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 14.04 LTS mongodb No fix yet —

Advisories 1

References