CVE-2026-85787

7.1 highEPSS 0.3%

High (7.1). EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

7.1 high

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 3.1

6.5 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-31)
CWE: CWE-184
Published: 2026-09-04
Modified: 2026-09-08
Record from: the NVD, synced 2026-10-19

References

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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