CRITICAL 9.0 NVD
CVE-2026-87911
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
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.
References
- https://aws.amazon.com/security/security-bulletins/2026-104-aws/
- https://github.com/awslabs/mcp/security/advisories/GHSA-fph8-pg5w-78fv
- https://pypi.org/project/awslabs.postgres-mcp-server/1.1.7/
This critical severity vulnerability with a CVSS score of 9.0 was published on 2026-09-09 via NVD.
Risk Timeline
CVE Disclosed2026-09-09 · 1 day ago
Remediation Resources
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