CVE-2026-87911
Critical · 9.6CVSS
9.6
EPSS
1.7%
Published
Sep 9, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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Related vulnerabilities
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