CVE-2026-103965

MEDIUM CVSS 4.0: 5.3 EPSS 0.15%
Updated Oct 15, 2026
MongoDB
Parameter Value
CVSS 5.3 (MEDIUM)
Type CWE-94 (Code Injection)
Vendor MongoDB
Public PoC No

An issue in MongoDB Server's aggregation framework can cause certain constant values to be handled incorrectly during internal query rewriting. Under certain conditions, an authenticated user with read access may receive field values in aggregation output that the query did not intend to return.

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

Weakness Type (CWE)

Vulnerable Products

mongodb:mongodb server