CVE-2026-16584: AWS API MCP Server Security Policy Bypass via Startup Failure
AWS · aws-api-mcp-server
Vendor fix available · Affected: aws-api-mcp-server · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 13% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- AWS · aws-api-mcp-serverfrom 0.2.13 before 1.3.47
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-16584 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.