What is CVE-2026-16584?

CVE-2026-16584 is a high-severity vulnerability in Aws Aws-api-mcp-server, classified under Non-exit on Failed Initialization. CVSS score: 7.0/10. Published 2026-07-23.

How severe is CVE-2026-16584?

High severity. CVSS v3 base score is 7.0 out of 10.

Vulnerability in Aws Aws-api-mcp-server

CVE-2026-16584

Improper handling of an initialization failure in AWS API MCP Server from 0.2.13 through 1.3.46 might allow an actor to bypass the user-configured security policy and execute AWS API operations that the policy was set to deny or gate. When…

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Aws Aws-api-mcp-server — versions 0.2.13

Weakness classification (CWE)

CWE-455 — Non-exit on Failed Initialization

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (release-notes, patch)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (release-notes)

Frequently asked questions

What is CVE-2026-16584?: CVE-2026-16584 is a high-severity vulnerability in Aws Aws-api-mcp-server, classified under Non-exit on Failed Initialization. CVSS score: 7.0/10. Published 2026-07-23.
How severe is CVE-2026-16584?: High severity. CVSS v3 base score is 7.0 out of 10.