CVE-2026-120824
Post-authentication use-after-free in MongoDB Server time-series bucket validation
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
A use-after-free in the time-series collection component of MongoDB Server can occur when the server validates a time-series bucket document during a write. The condition can be caused by an authenticated user with privileges to write bucket documents directly, and may result in the server terminating unexpectedly or, under certain conditions, arbitrary code execution in the context of the server process.
| CWE | CWE-416 |
| Vendor | mongodb |
| Product | mongodb server |
| Ecosystems | |
| Industries | Technology |
| Published | Nov 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
MongoDB / MongoDB Server
9.0.0 < 9.0.7 8.3.0 < 8.3.16 8.0.0 < 8.0.37 7.0.0 < 7.0.48