---
id: CVE-2026-17434
title: A flaw has been found in nanocoai NanoClaw up to 2.0.64
summary: >-
  A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the
  function handleAddMcpServer of the file src/modules/self-mod/request.ts of the
  component add_mcp_server. Executing a manipulation can lead to improper
  authorization…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-266
  - CWE-285
published: '2026-07-26'
updated: '2026-07-26'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-17434'
references:
  - url: 'https://github.com/nanocoai/nanoclaw/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/nanocoai/nanoclaw/commit/e5b928783d5c485637565eb07d2967922dfbf8d8
    label: cna@vuldb.com
  - url: 'https://github.com/nanocoai/nanoclaw/issues/2762'
    label: cna@vuldb.com
  - url: 'https://github.com/nanocoai/nanoclaw/pull/2998'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-17434'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/862451'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/383075'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/383075/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-07-26T11:12:03.135Z'
epss: 0.00374
epssPercentile: 0.28582
---

## Overview

A flaw has been found in nanocoai NanoClaw up to 2.0.64. Affected is the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used. This patch is called e5b928783d5c485637565eb07d2967922dfbf8d8. A patch should be applied to remediate this issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.