CVE-2026-82063 is a vulnerability in MongoDB
Published on September 8, 2026
Use-After-Free in MongoDB Server Cursor Management Component Leads to Denial of Service
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.
Vulnerability Analysis
CVE-2026-82063 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2026-82063 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2026-82063
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Affected Versions
MongoDB Server:- Version 8.3.0 and below 8.3.9 is affected.
- Version 8.0.0 and below 8.0.30 is affected.
- Version 7.0.0 and below 7.0.41 is affected.