CVE-2026-16584

7.0 HIGH
Published: July 23, 2026 Modified: July 23, 2026
View on NVD

Description

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 initialization of the security policy enforcement data fails at server startup, the policy check is skipped for the lifetime of the process. IAM permissions on the configured credentials remain in effect and are unaffected. To remediate this issue, users should upgrade to version 1.3.47.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://aws.amazon.com/security/security-bulletins/2026-063-aws/
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5
https://pypi.org/project/awslabs.aws-api-mcp-server/1.3.47/
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.0 / 10.0
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)