High severity8.6NVD Advisory· Published Aug 5, 2026· Updated Aug 10, 2026
CVE-2026-18953
CVE-2026-18953
Description
Improper limitation of a pathname to a restricted directory in the get_resource tool in Amazon awslabs.aws-transform-mcp-server 0.1.0 through 0.1.4 might allow a context-dependent actor to write arbitrary files outside the intended working directory via the savePath parameter.
To remediate this issue, users should upgrade to version 0.1.5 or later.
Affected products
3cpe:2.3:a:amazon:aws_transform_mcp_server:*:*:*:*:*:python:*:*+ 1 more
- cpe:2.3:a:amazon:aws_transform_mcp_server:*:*:*:*:*:python:*:*range: >=0.1.0,<0.1.5
- (no CPE)range: 0.1.0 - 0.1.4
- Range: 0.1.0 - 0.1.4
Patches
Vulnerability mechanics
References
3- aws.amazon.com/security/security-bulletins/2026-075-aws/nvdVendor Advisory
- github.com/awslabs/mcp/security/advisories/GHSA-66mr-jr63-2jgwnvdVendor Advisory
- pypi.org/project/awslabs.aws-transform-mcp-server/0.1.5/nvdProduct
News mentions
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