CVE-2026-1847

MongoDB Server may crash when inserting large documents

CVE-2026-1847 is fixed in MongoDB on 1 platform by MongoDB 8.2.4 (version 8.2.4), released January 15, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.1

No vendor severity

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0029

21st percentile

Inserting certain large documents into a replica set could lead to replica set secondaries not being able to fetch the oplog from the primary. This could stall replication inside the replica set leading to server crash.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
MongoDB	8.2.4	MongoDB 8.2.4	Jan 15, 2026

Details

Published
February 10, 2026
Weakness
CWE-770: Allocation of Resources Without Limits or Throttling
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-1847

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/cve/CVE-2026-1847">CVE-2026-1847 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Is this on your machines?

Patchblox finds every install below the fixed version on Windows, macOS and Linux, and updates them through your release rings.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.