Reachable assertion in MongoDB Server - CVE-2026-13058
Published: August 18, 2026
Vulnerability identifier: #VU144126
CSH Severity: Low
CVSS v4: 7.1 [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]
CVE-ID: CVE-2026-13058
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to reachable assertion in transaction command handling when processing a crafted transaction command with an incomplete set of required fields. A remote user can send a crafted transaction command to cause a denial of service.
The issue stems from inconsistent validation across related transaction command parameters, resulting in a fatal internal invariant failure.
Affected software
MongoDB Server
How to mitigate CVE-2026-13058
Install security update from vendor's website.
MongoDB Server - addressed in versions 8.0.28, 8.2.12, 8.3.7