CVE-2026-116635

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.

Overview

State: PUBLISHED
Assigner (CNA): AMZN
CVSS severity: MEDIUM
CVSS score: 6.9 / 10
CVSS 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
Effective score: 6.9 / 10 MEDIUM source: CNA overview
CWE(s): CWE-23, CWE-36
Reserved: 2026-10-26
Published: 2026-11-02 21:34 UTC
Last updated: 2026-11-02 21:34 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/116xxx/CVE-2026-116635.json

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-115643

EUVD enrichment is queued; refresh the page in a few seconds.

Affected products (1)

Vendor	Product	Versions	Platforms
AWS	aws-serverless-mcp-server	`0` (affected)	—

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

https://pypi.org/project/awslabs.aws-serverless-mcp-server/0.2.1/ release-notespatch
https://aws.amazon.com/security/security-bulletins/2026-164-aws/ vendor-advisory
https://github.com/awslabs/mcp/security/advisories/GHSA-r6mm-377j-qg8m third-party-advisory

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

Remediations (10)

CVE-2026-116635 - Improper limitation of a pathname to a restricted ...

web:aws.amazon.com

We identified CVE-2026-116635 . Under certain conditions, improper limitation of a pathname to a restricted directory in the deployment status component of the MCP server might allow an actor who can influence the MCP agent to read the contents of JSON files outside the intended deployment status directory.

2026-11-03 12:41 UTC
Oracle Critical Patch Update Advisory - April 2026

web:blogs.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-11-03 12:41 UTC
September 2026 Critical Security Patch Update Released

web:blogs.oracle.com

For more information about the Critical Security Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

2026-11-03 12:41 UTC
CVE-2026-116635: AWS Path Traversal (CVSS 6.1) | CVETodo

web:cvetodo.com

CVE-2026-116635 is a Path Traversal vulnerability in AWS Serverless Mcp Server. Full technical analysis, mitigations , and exploit status — updated in real time.

2026-11-03 12:41 UTC
CVE Vulnerabilities 2026: Critical Flaws & Fixes Hub

web:cyberupdates365.com

Track critical CVE vulnerabilities 2026 with verified enterprise patch guides. Fix zero-days across VMware, WordPress, Windows, and cloud infrastructure.

2026-11-03 12:41 UTC
Pre-Authentication Authorization Bypass and Command Injection ...

web:trust.barracuda.com

Pre-Authentication Authorization Bypass and Command Injection Vulnerabilities in Certain Barracuda Products — Updates Available Overview Barracuda has identified two vulnerabilities affecting certain Barracuda products: a pre-authentication authorization bypass vulnerability and a command injection vulnerability. The vulnerabilities have been assigned CVE - 2026 -116606 and CVE - 2026 -111560 ...

2026-11-03 12:41 UTC
What Is CVE Remediation in 2026? - aikido.dev

web:www.aikido.dev

None of these is a clean fix , which is why the decision on how to remediate depends on knowing what package versions are running in production and why. This post will cover how AI has accelerated CVE detection and discovery, the upgrade trap, what CVE remediation actually involves in 2026 , and how to solve the CVE remediation problem.

2026-11-03 12:41 UTC
The 8 Best Automated Vulnerability Remediation Tools in 2026

web:www.openhands.dev

Compare 8 automated vulnerability remediation tools for 2026 on fixes, prioritization, integrations, and deployment control.

2026-11-03 12:41 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-11-03 12:41 UTC
Oracle Critical Security Patch Update Advisory - September 2026

web:www.oracle.com

Prior Critical Patch Update and Critical Security Patch Update advisories should be reviewed for information regarding earlier published security patches. Refer to Critical Patch Updates, Critical Security Patch Updates, Security Alerts and Bulletins for information about Oracle Security advisories.

2026-11-03 12:41 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-116635.json.

{
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          "vendor": "AWS",
          "versions": [
            {
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
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        }
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        },
        {
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        },
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        },
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          "url": "https://github.com/awslabs/mcp/security/advisories/GHSA-r6mm-377j-qg8m"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Improper limitation of a pathname to a restricted directory in the deployment status component of the AWS Serverless MCP Server",
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    "datePublished": "2026-11-02T21:34:09.483Z",
    "dateReserved": "2026-10-26T18:00:54.383Z",
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    "state": "PUBLISHED"
  },
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