Incorrect authorization in the aggregation pipeline tool in Amazon AWS Labs DocumentDB MCP Server before 1.0.12 might allow an authenticated MCP client to perform inappropriate write operations on the connected database via write-capable aggregation pipeline stages that bypass the read-only mode enforcement logic.
To remediate this issue, users should upgrade to version 1.0.12 or later.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
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
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Amazon Documentdb_Mcp_Server
cpe:2.3:a:amazon:documentdb_mcp_server:*:*:*:*:*:python:*:*
|
— |
1.0.12
|
References 3
https://aws.amazon.com/security/security-bulletins/2026-076-aws/
ff89ba41-3aa1-4d27-914a-91399e9639e5
https://github.com/awslabs/mcp/releases/tag/2026.04.20260408085348
ff89ba41-3aa1-4d27-914a-91399e9639e5
https://github.com/awslabs/mcp/security/advisories/GHSA-j694-4m5j-w8hc
ff89ba41-3aa1-4d27-914a-91399e9639e5