CVE-2026-85787 PUBLISHED

An incomplete list of disallowed inputs in the SQL validation component of Amazon awslabs postgres-mcp-server

Assigner: AMZN
Reserved: 04.09.2026 Published: 04.09.2026 Updated: 04.09.2026

An incomplete list of disallowed inputs in the SQL validation component in Amazon awslabs postgres-mcp-server before version 1.1.7 might allow an unauthenticated actor to modify data beyond the read-only scope by placing crafted SQL into the content that is submitted when an authenticated user interacts with the MCP server.

To remediate this issue, users should upgrade to version 1.1.7 or above.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS Score: 6.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Amazon
Product	postgres-mcp-server
Versions	Default: unaffected affected from 0 to 1.1.7 (excl.)

CVE-2026-85787 PUBLISHED

An incomplete list of disallowed inputs in the SQL validation component of Amazon awslabs postgres-mcp-server

Metrics

Product Status

References

Problem Types

Impacts