# CVE-2026-6914: MD5 checksum creation may cause availability loss

CVE-2026-6914 is fixed in MongoDB on 1 platform by MongoDB 8.2.7 (version 8.2.7), released March 31, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-6914
- Priority: High
- CVSS: 7.1
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 29, 2026
- Weakness: CWE-191: Integer underflow (wrap or wraparound)
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-6914

## Description

Computing the MD5 checksum of a malformed BSON object under specific conditions may cause loss of availability in MongoDB server. This issue affects all MongoDB Server v8.2 versions, all MongoDB Server v8.1 versions, MongoDB Server v8.0 versions prior to 8.0.21, MongoDB Server v7.0 versions prior to 7.0.32

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | MongoDB | 8.2.7 | [MongoDB 8.2.7](https://patchblox.com/security/data/fix/windows-app/mongodb.server-8.2.7.md) | Mar 31, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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