CVE-2026-17434

nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization

MEDIUM
6.3
CVSS Score
Published: July 26, 2026 at 03:00 AM UTC
Updated: October 24, 2026 at 01:10 PM UTC
1 product affected across 1 vendorNanoClaw

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (8)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/383075
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/383075/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-17434
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/862451
ExploitIssue Tracking
Source: cverecord
https://github.com/nanocoai/nanoclaw/issues/2762
Issue TrackingPatch
Source: cverecord
https://github.com/nanocoai/nanoclaw/pull/2998

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-285CWE-266

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