AUGUST 26, 2026
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Case File

CVE-2026-9743

MEDIUM · CVSS 6.5 EPSS 0.31%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-06-09 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. It affects MongoDB. Exploitation may require the attacker to be authenticated. It may lead to a denial-of-service condition.

CVE
CVE-2026-9743
Severity
MEDIUM
CVSS
6.5
EPSS
0.31%
MongoDB

Original NVD Description

In MongoDB Server 8.0, an aggregation stage can leave its _subPipeline field null during processing of certain pipelines. If a getMore is subsequently issued on the same cursor, the server may dereference this null sub-pipeline when reattaching to the operation context, accessing an invalid address and crashing the process. This issue allows an authenticated user who can run aggregation pipelines to cause a denial of service by issuing a specially crafted aggregation followed by getMore on affected versions.

Related CVEs

Other vulnerabilities affecting the same vendor(s)