5.5Mittel
CVE-2026-4270AWS API MCP File Access Restriction Bypass
Beschreibung
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.
Schwachstellentyp (CWE):
CWE-424
Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.
Betroffene Produkte und Versionen
| Hersteller | Produkt | Versionen | |
|---|---|---|---|
| amazon | aws api mcp server | 0.2.14 – < 1.3.9 | |
| AWS | AWS API MCP Server | 0.2.14 – < 1.3.9 |
Referenzen und Patches
- 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-Treffer (NVD) (1)
cpe:2.3:a:amazon:aws_api_mcp_server:*:*:*:*:*:python:*:*≥ 0.2.14 < 1.3.9