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2 vulnerabilities found for aws_api_mcp_server by amazon
CVE-2026-4270 (GCVE-0-2026-4270)
Vulnerability from nvd – Published: 2026-03-16 16:07 – Updated: 2026-03-16 18:17
VLAI
Title
AWS API MCP File Access Restriction Bypass
Summary
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.
Severity
5.5 (Medium)
CWE
- CWE-424 - Improper Protection of Alternate Path
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://pypi.org/project/awslabs.aws-api-mcp-serv… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AWS | AWS API MCP Server |
Affected:
0.2.14 , < 1.3.9
(custom)
|
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CVE-2026-4270 (GCVE-0-2026-4270)
Vulnerability from cvelistv5 – Published: 2026-03-16 16:07 – Updated: 2026-03-16 18:17
VLAI
Title
AWS API MCP File Access Restriction Bypass
Summary
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.
Severity
5.5 (Medium)
CWE
- CWE-424 - Improper Protection of Alternate Path
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://pypi.org/project/awslabs.aws-api-mcp-serv… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AWS | AWS API MCP Server |
Affected:
0.2.14 , < 1.3.9
(custom)
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