CVE-2025-6706
Publication date 26 June 2025
Last updated 18 February 2026
Ubuntu priority
Description
An authenticated user may trigger a use after free that may result in MongoDB Server crash and other unexpected behavior, even if the user does not have authorization to shut down a server. The crash is triggered on affected versions by issuing an aggregation framework operation using a specific combination of rarely-used aggregation pipeline expressions. This issue affects MongoDB Server v6.0 version prior to 6.0.21, MongoDB Server v7.0 version prior to 7.0.17 and MongoDB Server v8.0 version prior to 8.0.4 when the SBE engine is enabled.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| mongodb | 25.10 questing | Not in release |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Vulnerable, fix deferred
|
|
| 18.04 LTS bionic |
Vulnerable, fix deferred
|
|
| 16.04 LTS xenial |
Vulnerable, fix deferred
|
|
| 14.04 LTS trusty |
Vulnerable, fix deferred
|
Notes
john-breton
As of 2026-02-18, upstream has not posted a patch for this issue. Even if they did, due to the SSPL license for MongoDB we would be unable to use the patch to address this vulnerability in Ubuntu. The hope is a license-compliant third-party will make patches available in the future.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.0 · Medium
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L |