Reachable assertion in MongoDB Server - CVE-2026-13073
Published: August 18, 2026
Vulnerability identifier: #VU144110
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-13073
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 aggregation command processing when handling a crafted aggregation command with a specific combination of aggregation options. A remote user can send a crafted aggregation command to cause a denial of service.
The mongod process terminates abnormally, affecting all connected clients until the process is restarted.
Affected software
MongoDB Server
How to mitigate CVE-2026-13073
Install security update from vendor's website.
MongoDB Server - update to 8.0.28