5.5Orta
CVE-2026-4270AWS API MCP File Access Restriction Bypass
Açıklama
Improper Protection of Alternate Path exists in the no-access and workdir feature of the AWS API MCP Server versions >= 0.2.14 and < 1.3.9 on all platforms may allow the bypass of intended file access restriction and expose arbitrary local file contents in the MCP client application context. To remediate this issue, users should upgrade to version 1.3.9.
Zayıflık türü (CWE):
CWE-424
Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.
Etkilenen ürünler ve sürümler
| Üretici | Ürün | Sürümler | |
|---|---|---|---|
| amazon | aws api mcp server | 0.2.14 – < 1.3.9 | |
| AWS | AWS API MCP Server | 0.2.14 – < 1.3.9 |
Kaynaklar ve yamalar
- https://aws.amazon.com/security/security-bulletins/2026-007-AWS/ vendor-advisoryVendor Advisory
- https://pypi.org/project/awslabs.aws-api-mcp-server/1.3.9/ patchThird Party Advisory
CPE eşleşmeleri (NVD) (1)
cpe:2.3:a:amazon:aws_api_mcp_server:*:*:*:*:*:python:*:*≥ 0.2.14 < 1.3.9