CVE-2026-18690

HIGH CVSS 4.0: 7.2 EPSS 0.26%
Updated Aug 12, 2026
MongoDB
Parameter Value
CVSS 7.2 (HIGH)
Type CWE-863 (Incorrect Authorization)
Vendor MongoDB
Public PoC No

An issue in MongoDB Server could allow an authenticated user with a limited database-scoped role to perform an action against protected system collections that their assigned privileges should not permit. This could result in critical system collections being dropped and recreated without proper authorization.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0