Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-87911

AWS Labs postgres MCP Server · Vulnerability

CVSS 3.1 9.6 CRITICALCVSS 4.0 9.0 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-87911

Published

An OS command injection weakness in the read-only enforcement of the SQL validation component in Amazon awslabs postgres-mcp-server before 1.1.7 might allow an unauthenticated actor to execute operating system commands on the host of a self-managed PostgreSQL server by placing a crafted COPY ... TO PROGRAM statement into content that is processed when an authenticated user interacts with the MCP server in its default read-only mode. To remediate this issue, users should upgrade to version 1.1.7 or later.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-87911

Published

AWS Labs postgres MCP Server

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "AWS",
                    "product": "AWS Labs postgres MCP Server",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "1.1.7",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON