CVE-2026-17434

MEDIUM

nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization

Title source: cna
STIX 2.1

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.

References (8)

Core 8
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-383075 | nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization
https://vuldb.com/vuln/383075
Signature, Permissions Required signature permissions-required
VDB-383075 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/383075/cti
Third Party Advisory third-party-advisory
CVE-2026-17434 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-17434
Third Party Advisory third-party-advisory
Submit #862451 | NanoCoAI NanoClaw 2.0.64 Improper Authorization (CWE-285)
https://vuldb.com/submit/862451
Exploit exploit issue-tracking
https://github.com/nanocoai/nanoclaw/issues/2762

Scores

CVSS v3 6.3
EPSS 0.0021
EPSS Percentile 12.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-266 CWE-285
Status published
Products (50)
nanocoai/NanoClaw 2.0.0
nanocoai/NanoClaw 2.0.1
nanocoai/NanoClaw 2.0.10
nanocoai/NanoClaw 2.0.11
nanocoai/NanoClaw 2.0.12
nanocoai/NanoClaw 2.0.13
nanocoai/NanoClaw 2.0.14
nanocoai/NanoClaw 2.0.15
nanocoai/NanoClaw 2.0.16
nanocoai/NanoClaw 2.0.17
... and 40 more
Published Jul 26, 2026
Tracked Since Jul 26, 2026