Description
Improper limitation of a pathname to a restricted directory in the deployment status component of the AWS Serverless MCP Server (aws-serverless-mcp-server) before v0.2.1 might allow an actor who can influence the MCP agent to read the contents of JSON files outside the intended deployment status directory. Where write access has been enabled, to create or overwrite JSON files outside that directory. This issue is reachable through directory traversal sequences or an absolute path supplied in the project name input.



To remediate this issue, users should upgrade to version v0.2.1.
Published: 2026-11-02
Score: 6.9 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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History

Mon, 02 Nov 2026 21:45:00 +0000

Type Values Removed Values Added
Description Improper limitation of a pathname to a restricted directory in the deployment status component of the AWS Serverless MCP Server (aws-serverless-mcp-server) before v0.2.1 might allow an actor who can influence the MCP agent to read the contents of JSON files outside the intended deployment status directory. Where write access has been enabled, to create or overwrite JSON files outside that directory. This issue is reachable through directory traversal sequences or an absolute path supplied in the project name input. To remediate this issue, users should upgrade to version v0.2.1.
Title Improper limitation of a pathname to a restricted directory in the deployment status component of the AWS Serverless MCP Server
First Time appeared Aws
Aws aws-serverless-mcp-server
Weaknesses CWE-23
CWE-36
CPEs cpe:2.3:a:aws:aws-serverless-mcp-server:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws aws-serverless-mcp-server
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

Aws Aws-serverless-mcp-server
cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-11-02T21:34:09.483Z

Reserved: 2026-10-26T18:00:54.383Z

Link: CVE-2026-116635

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-23

    Relative Path Traversal

  • CWE-36

    Absolute Path Traversal