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CVE-2026-17434— nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization

Quick assessment

Affected
nanocoai NanoClaw
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NanoCo NanoClaw是NanoCo组织的一个轻量级个人AI代理平台。 NanoCo NanoClaw 2.0.64及之前版本存在安全漏洞，该漏洞源于对src/modules/self-mod/request.ts文件中函数handleAddMcpServer的操作，可能导致授权不当。

CVSS 6.3 · Medium EPSS 0.37% · P29

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 65

VendorProduct Version RangeStatus
nanocoai NanoClaw 2.0.0 affected
2.0.1 affected
2.0.2 affected
2.0.3 affected
2.0.4 affected
2.0.5 affected
2.0.6 affected
2.0.7 affected
… +57 more rows
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I. Basic Information for CVE-2026-17434

Vulnerability Information
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Vulnerability Title
nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
NanoCo NanoClaw 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NanoCo NanoClaw是NanoCo组织的一个轻量级个人AI代理平台。 NanoCo NanoClaw 2.0.64及之前版本存在安全漏洞，该漏洞源于对src/modules/self-mod/request.ts文件中函数handleAddMcpServer的操作，可能导致授权不当。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
nanocoai NanoClaw 2.0.0 cpe:2.3:a:nanocoai:nanoclaw:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-17434

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III. Intelligence Information for CVE-2026-17434

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Patches & Fixes for CVE-2026-17434 (2)

Proof of Concept for CVE-2026-17434 (1)

Other References for CVE-2026-17434 (1)

IV. Related Vulnerabilities

Same product: NanoClaw
Same vendor: nanocoai
Same weakness: CWE-285

V. Comments for CVE-2026-17434

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