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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
nanocoai NanoClaw affected
Version Status Constraints
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 —
2.0.8 affected —
2.0.9 affected —
2.0.10 affected —
2.0.11 affected —
2.0.12 affected —
2.0.13 affected —
2.0.14 affected —
2.0.15 affected —
2.0.16 affected —
2.0.17 affected —
2.0.18 affected —
2.0.19 affected —
2.0.20 affected —
2.0.21 affected —
2.0.22 affected —
2.0.23 affected —
2.0.24 affected —
2.0.25 affected —
2.0.26 affected —
2.0.27 affected —
2.0.28 affected —
2.0.29 affected —
2.0.30 affected —
2.0.31 affected —
2.0.32 affected —
2.0.33 affected —
2.0.34 affected —
2.0.35 affected —
2.0.36 affected —
2.0.37 affected —
2.0.38 affected —
2.0.39 affected —
2.0.40 affected —
2.0.41 affected —
2.0.42 affected —
2.0.43 affected —
2.0.44 affected —
2.0.45 affected —
2.0.46 affected —
2.0.47 affected —
2.0.48 affected —
2.0.49 affected —
2.0.50 affected —
2.0.51 affected —
2.0.52 affected —
2.0.53 affected —
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2.0.55 affected —
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2.0.57 affected —
2.0.58 affected —
2.0.59 affected —
2.0.60 affected —
2.0.61 affected —
2.0.62 affected —
2.0.63 affected —
2.0.64 affected —

No data.

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Project Subscriptions

Vendors Products
Nanocoai Subscribe
Nanoclaw Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/nanocoai/nanoclaw/ cve-icon
https://github.com/nanocoai/nanoclaw/commit/e5b928783d5c485637565eb07d2967922dfbf8d8 cve-icon
https://github.com/nanocoai/nanoclaw/issues/2762 cve-icon
https://github.com/nanocoai/nanoclaw/pull/2998 cve-icon
https://vuldb.com/cve/CVE-2026-17434 cve-icon
https://vuldb.com/submit/862451 cve-icon
https://vuldb.com/vuln/383075 cve-icon
https://vuldb.com/vuln/383075/cti cve-icon
History

Sun, 26 Jul 2026 04:00:00 +0000

Type Values Removed Values Added
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.
Title nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization
First Time appeared Nanocoai
Nanocoai nanoclaw
Weaknesses CWE-266
CWE-285
CPEs cpe:2.3:a:nanocoai:nanoclaw:*:*:*:*:*:*:*:*
Vendors & Products Nanocoai
Nanocoai nanoclaw
References
Metrics cvssV2_0

{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 6.3, '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'}

cvssV3_1

{'score': 6.3, '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'}

cvssV4_0

{'score': 5.3, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-07-26T03:00:16.981Z

Reserved: 2026-07-25T11:08:25.395Z

Link: CVE-2026-17434

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses