CVE-2026-17434 PUBLISHED

nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization

Assigner: VulDB
Reserved: 25.07.2026 Published: 26.07.2026 Updated: 26.07.2026

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.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CVSS Score: 6.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CVSS Score: 6.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.0

CVSS Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C
CVSS Score: 6.5

Access Vector	Network	Confidentiality Impact	Partial
Access Complexity	Low	Integrity Impact	Partial
Authentication	Single	Availability Impact	Partial

CVSS 2.0

Product Status

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

CVE-2026-17434 PUBLISHED

nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization

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