#VU122799 Resource exhaustion in MongoDB - CVE-2026-1847

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Main Vulnerability Database Vulnerabilities #VU122799

#VU122799 Resource exhaustion in MongoDB - CVE-2026-1847

Published: February 13, 2026


Vulnerability identifier: #VU122799
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-1847
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
MongoDB
Software vendor:
MongoDB, Inc.

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote user can insert certain large documents into a replica set causing the replica set secondaries not being able to fetch the oplog from the primary, which stalls replication inside the replica set leading to server crash.


Remediation

Install updates from vendor's website.

External links