CVE-2026-18698

MEDIUM CVSS 4.0: 5.3 EPSS 0.17%
Updated Aug 12, 2026
MongoDB
Parameter Value
CVSS 5.3 (MEDIUM)
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 should require more specific privileges. This could result in exposure of collection metadata and, on certain deployment configurations, unauthorized modification of system collection data.

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
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v4.0