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Vulnerability record · CVE-2026-85787 · published 4 September 2026

CVE-2026-85787: An incomplete list of disallowed inputs in the SQL validation component in Amazon awslabs postgres-mcp-server …

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.

7.1 CVSS 4.0 High EPSS 0.34% · top 74.9% CWE-184 · CWE-184 Awaiting Analysis
7.1CVSS 4.0 base score
0.34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
8 Sep 2026Last modified by NVD

Description

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:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://aws.amazon.com/security/security-bulletins/2026-101-aws/
https://pypi.org/project/awslabs.postgres-mcp-server/1.1.7/

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Source: NIST National Vulnerability Database (record CVE-2026-85787), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.