nanocoai NanoClaw add_mcp_server request.ts handleAddMcpServer improper authorization
Summary
| CVE | CVE-2026-17434 |
|---|---|
| State | PUBLISHED |
| Assigner | VulDB |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-26 04:16:46 UTC |
| Updated | 2026-07-26 04:16:46 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 2.1 LOW from [email protected]
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/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
Problem Types: CWE-266 | CWE-285 | CWE-285 Improper Authorization | CWE-266 Incorrect Privilege Assignment
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 2.1 | LOW | 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/C... |
| 4.0 | CNA | DECLARED | 5.3 | MEDIUM | 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 |
| 3.1 | [email protected] | Primary | 6.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| 3.1 | CNA | DECLARED | 6.3 | MEDIUM | 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 |
| 3.0 | CNA | DECLARED | 6.3 | MEDIUM | 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 |
| 2.0 | [email protected] | Secondary | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P | |
| 2.0 | CNA | DECLARED | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
LowUser Interaction
NoneConfidentiality
LowIntegrity
LowAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS: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/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
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
LowAvailability
LowCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
LowAvailability
LowCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Nanocoai | NanoClaw | affected 2.0.0 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.1 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.2 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.3 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.4 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.5 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.6 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.7 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.8 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.9 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.10 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.11 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.12 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.13 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.14 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.15 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.16 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.17 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.18 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.19 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.20 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.21 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.22 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.23 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.24 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.25 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.26 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.27 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.28 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.29 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.30 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.31 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.32 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.33 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.34 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.35 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.36 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.37 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.38 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.39 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.40 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.41 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.42 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.43 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.44 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.45 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.46 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.47 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.48 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.49 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.50 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.51 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.52 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.53 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.54 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.55 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.56 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.57 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.58 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.59 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.60 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.61 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.62 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.63 | Not specified |
| CNA | Nanocoai | NanoClaw | affected 2.0.64 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/nanocoai/nanoclaw/pull/2998 | [email protected] | github.com | |
| github.com/nanocoai/nanoclaw/commit/e5b928783d5c485637565eb07d2967922dfb... | [email protected] | github.com | |
| vuldb.com/submit/862451 | [email protected] | vuldb.com | |
| vuldb.com/vuln/383075 | [email protected] | vuldb.com | |
| github.com/nanocoai/nanoclaw | [email protected] | github.com | |
| vuldb.com/vuln/383075/cti | [email protected] | vuldb.com | |
| github.com/nanocoai/nanoclaw/issues/2762 | [email protected] | github.com | |
| vuldb.com/cve/CVE-2026-17434 | [email protected] | vuldb.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Erichen-x (VulDB User) (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-07-25T00:00:00.000Z | Advisory disclosed |
| CNA | 2026-07-25T02:00:00.000Z | VulDB entry created |
| CNA | 2026-07-25T13:13:39.000Z | VulDB entry last update |
There are currently no legacy QID mappings associated with this CVE.