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CVE-2026-87911

Read-only enforcement bypass enabling operating system command execution in the SQL validation component of Amazon awslabs postgres-mcp-server PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
AWS / AWS Labs postgres MCP Serveraffected 0 before 1.1.7

CWE

CWE-78, CWE-184

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.