CVE-2026-18953

Improper limitation of a pathname to a restricted directory in aws-transform-mcp-server

Published Aug 5, 2026 CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Improper limitation of a pathname to a restricted directory in aws-transform-mcp-server
First Time appeared Aws
Aws aws-transform-mcp-server
Weaknesses CWE-22
CPEs cpe:2.3:a:aws:aws-transform-mcp-server:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws aws-transform-mcp-server
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMZN
Published
Updated
Aug 6, 2026, 2:51 PM
Reserved
Aug 5, 2026, 1:44 PM
Status
Analyzed
Published
Aug 5, 2026, 8:17 PM
Modified
Oct 23, 2026, 9:10 PM