CVE-2026-17434
nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization
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.
INFO
Published Date :
July 26, 2026, 4:16 a.m.
Last Modified :
July 26, 2026, 4:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-17434
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Apply patch e5b928783d5c485637565eb07d2967922dfbf8d8.
- Update nanocoai NanoClaw to a version greater than 2.0.64.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-17434.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-17434 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-17434
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-17434 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-17434 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jul. 26, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:nanocoai:nanoclaw:*:*:*:*:*:*:*:*'], 'vendor': 'nanocoai', 'modules': ['add_mcp_server'], 'product': 'NanoClaw', 'versions': [{'status': 'affected', 'version': '2.0.0'}, {'status': 'affected', 'version': '2.0.1'}, {'status': 'affected', 'version': '2.0.2'}, {'status': 'affected', 'version': '2.0.3'}, {'status': 'affected', 'version': '2.0.4'}, {'status': 'affected', 'version': '2.0.5'}, {'status': 'affected', 'version': '2.0.6'}, {'status': 'affected', 'version': '2.0.7'}, {'status': 'affected', 'version': '2.0.8'}, {'status': 'affected', 'version': '2.0.9'}, {'status': 'affected', 'version': '2.0.10'}, {'status': 'affected', 'version': '2.0.11'}, {'status': 'affected', 'version': '2.0.12'}, {'status': 'affected', 'version': '2.0.13'}, {'status': 'affected', 'version': '2.0.14'}, {'status': 'affected', 'version': '2.0.15'}, {'status': 'affected', 'version': '2.0.16'}, {'status': 'affected', 'version': '2.0.17'}, {'status': 'affected', 'version': '2.0.18'}, {'status': 'affected', 'version': '2.0.19'}, {'status': 'affected', 'version': '2.0.20'}, {'status': 'affected', 'version': '2.0.21'}, {'status': 'affected', 'version': '2.0.22'}, {'status': 'affected', 'version': '2.0.23'}, {'status': 'affected', 'version': '2.0.24'}, {'status': 'affected', 'version': '2.0.25'}, {'status': 'affected', 'version': '2.0.26'}, {'status': 'affected', 'version': '2.0.27'}, {'status': 'affected', 'version': '2.0.28'}, {'status': 'affected', 'version': '2.0.29'}, {'status': 'affected', 'version': '2.0.30'}, {'status': 'affected', 'version': '2.0.31'}, {'status': 'affected', 'version': '2.0.32'}, {'status': 'affected', 'version': '2.0.33'}, {'status': 'affected', 'version': '2.0.34'}, {'status': 'affected', 'version': '2.0.35'}, {'status': 'affected', 'version': '2.0.36'}, {'status': 'affected', 'version': '2.0.37'}, {'status': 'affected', 'version': '2.0.38'}, {'status': 'affected', 'version': '2.0.39'}, {'status': 'affected', 'version': '2.0.40'}, {'status': 'affected', 'version': '2.0.41'}, {'status': 'affected', 'version': '2.0.42'}, {'status': 'affected', 'version': '2.0.43'}, {'status': 'affected', 'version': '2.0.44'}, {'status': 'affected', 'version': '2.0.45'}, {'status': 'affected', 'version': '2.0.46'}, {'status': 'affected', 'version': '2.0.47'}, {'status': 'affected', 'version': '2.0.48'}, {'status': 'affected', 'version': '2.0.49'}, {'status': 'affected', 'version': '2.0.50'}, {'status': 'affected', 'version': '2.0.51'}, {'status': 'affected', 'version': '2.0.52'}, {'status': 'affected', 'version': '2.0.53'}, {'status': 'affected', 'version': '2.0.54'}, {'status': 'affected', 'version': '2.0.55'}, {'status': 'affected', 'version': '2.0.56'}, {'status': 'affected', 'version': '2.0.57'}, {'status': 'affected', 'version': '2.0.58'}, {'status': 'affected', 'version': '2.0.59'}, {'status': 'affected', 'version': '2.0.60'}, {'status': 'affected', 'version': '2.0.61'}, {'status': 'affected', 'version': '2.0.62'}, {'status': 'affected', 'version': '2.0.63'}, {'status': 'affected', 'version': '2.0.64'}]}] 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CWE CWE-285 Added CWE CWE-266 Added Reference https://github.com/nanocoai/nanoclaw/ Added Reference https://github.com/nanocoai/nanoclaw/commit/e5b928783d5c485637565eb07d2967922dfbf8d8 Added Reference https://github.com/nanocoai/nanoclaw/issues/2762 Added Reference https://github.com/nanocoai/nanoclaw/pull/2998 Added Reference https://vuldb.com/cve/CVE-2026-17434 Added Reference https://vuldb.com/submit/862451 Added Reference https://vuldb.com/vuln/383075 Added Reference https://vuldb.com/vuln/383075/cti