nanocoai NanoClaw up to 2.0.64 add_mcp_server request.ts handleAddMcpServer improper authorization

Summaryinfo

A vulnerability was found in nanocoai NanoClaw up to 2.0.64. It has been rated as critical. Affected by this vulnerability is the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. The manipulation leads to improper authorization. This vulnerability is referenced as CVE-2026-17434. Remote exploitation of the attack is possible. Furthermore, an exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in nanocoai NanoClaw up to 2.0.64. It has been rated as critical. This issue affects the function handleAddMcpServer of the file src/modules/self-mod/request.ts of the component add_mcp_server. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-17434. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

The exploit is available at github.com. It is declared as proof-of-concept.

Applying the patch e5b928783d5c485637565eb07d2967922dfbf8d8 is able to eliminate this problem. The bugfix is ready for download at github.com.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• nanocoai

Name

• NanoClaw

Version

• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5
• 2.0.6
• 2.0.7
• 2.0.8
• 2.0.9
• 2.0.10
• 2.0.11
• 2.0.12
• 2.0.13
• 2.0.14
• 2.0.15
• 2.0.16
• 2.0.17
• 2.0.18
• 2.0.19
• 2.0.20
• 2.0.21
• 2.0.22
• 2.0.23
• 2.0.24
• 2.0.25
• 2.0.26
• 2.0.27
• 2.0.28
• 2.0.29
• 2.0.30
• 2.0.31
• 2.0.32
• 2.0.33
• 2.0.34
• 2.0.35
• 2.0.36
• 2.0.37
• 2.0.38
• 2.0.39
• 2.0.40
• 2.0.41
• 2.0.42
• 2.0.43
• 2.0.44
• 2.0.45
• 2.0.46
• 2.0.47
• 2.0.48
• 2.0.49
• 2.0.50
• 2.0.51
• 2.0.52
• 2.0.53
• 2.0.54
• 2.0.55
• 2.0.56
• 2.0.57
• 2.0.58
• 2.0.59
• 2.0.60
• 2.0.61
• 2.0.62
• 2.0.63
• 2.0.64

License

• open-source

Website

• Product: https://github.com/nanocoai/nanoclaw/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
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Exploitinginfo

Threat Intelligenceinfo

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Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #862451: NanoCoAI NanoClaw 2.0.64 Improper Authorization (CWE-285) (by Erichen-x)

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