Missing token audience validation in the OAuth authentication mode of AWS API MCP Server before version 1.6.0 might allow local users to run AWS operations with the server's configured AWS credentials via an access token issued to another application by the same identity provider.
To remediate this issue, users should upgrade to version 1.6.0 and configure the expected token audience or client ID for the server.
To remediate this issue, users should upgrade to version 1.6.0 and configure the expected token audience or client ID for the server.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 27 Oct 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Missing token audience validation in the OAuth authentication mode of AWS API MCP Server before version 1.6.0 might allow local users to run AWS operations with the server's configured AWS credentials via an access token issued to another application by the same identity provider. To remediate this issue, users should upgrade to version 1.6.0 and configure the expected token audience or client ID for the server. | |
| Title | AWS API MCP Server OAuth Token Audience Validation Bypass | |
| First Time appeared |
Aws
Aws aws-api-mcp-server |
|
| Weaknesses | CWE-346 | |
| CPEs | cpe:2.3:a:aws:aws-api-mcp-server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Aws
Aws aws-api-mcp-server |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: AMZN
Published:
Updated: 2026-10-27T18:10:28.758Z
Reserved: 2026-10-22T13:11:03.305Z
Link: CVE-2026-115413
No data.
Status : Received
Published: 2026-10-27T19:17:10.593
Modified: 2026-10-27T19:17:10.593
Link: CVE-2026-115413
No data.
OpenCVE Enrichment
Updated: 2026-10-27T19:30:09Z
Weaknesses