CVE-2026-82063

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

Published Sep 8, 2026 CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Mongodb mongodb
CPEs cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
Vendors & Products Mongodb mongodb
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Mongodb
Mongodb mongodb Server
Vendors & Products Mongodb
Mongodb mongodb Server
Type Values Removed Values Added
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.
Title Use-After-Free in MongoDB Server Cursor Management Component Leads to Denial of Service
Weaknesses CWE-416
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mongodb
Published
Updated
Sep 8, 2026, 5:58 PM
Reserved
Aug 27, 2026, 10:52 PM
Status
Analyzed
Published
Sep 8, 2026, 5:18 PM
Modified
Sep 16, 2026, 8:37 PM