CVE-2026-82063: CWE-416: Use After Free in MongoDB MongoDB Server
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.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in MongoDB Server's cursor management. When an authenticated user performs cursor operations, a stale pointer to a freed resource may be retained and later dereferenced during cursor cleanup, causing the server process to crash. This results in a denial of service. The issue affects specific versions of MongoDB Server (7.0.0, 8.0.0, and 8.3.0). There is no vendor advisory or patch currently available, and the vulnerability requires low privileges (authenticated user) with partial attack complexity. No known active exploitation has been reported.
Potential Impact
An authenticated user can cause a denial of service by crashing the MongoDB Server process. This disrupts availability but does not indicate data corruption or unauthorized data access based on the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, monitor for updates from MongoDB and consider limiting authenticated user privileges to reduce risk.
CVE-2026-82063: CWE-416: Use After Free in MongoDB MongoDB Server
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.
CVSS v4.0
Score 6.0medium
Affected software
pkg:github/mongodb/mongoRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in MongoDB Server's cursor management. When an authenticated user performs cursor operations, a stale pointer to a freed resource may be retained and later dereferenced during cursor cleanup, causing the server process to crash. This results in a denial of service. The issue affects specific versions of MongoDB Server (7.0.0, 8.0.0, and 8.3.0). There is no vendor advisory or patch currently available, and the vulnerability requires low privileges (authenticated user) with partial attack complexity. No known active exploitation has been reported.
Potential Impact
An authenticated user can cause a denial of service by crashing the MongoDB Server process. This disrupts availability but does not indicate data corruption or unauthorized data access based on the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, monitor for updates from MongoDB and consider limiting authenticated user privileges to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-08-27T22:52:19.939Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa03a25acd9273b49ec3639
Added to database: 09/08/2026, 16:39:01 UTC
Last enriched: 09/08/2026, 16:53:01 UTC
Last updated: 09/09/2026, 00:23:04 UTC
Views: 8
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