---
cve: "CVE-2026-17434"
severity: "MEDIUM"
cvss: 5.3
epss: "21%"
vendor: "nanocoai"
kev: false
exploited: false
published: "2026-07-26 04:16:46"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T17:29:37+02:00"
---

# CVE-2026-17434

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- e5b928783d5c485637565eb07d2967922dfbf8d8 (Commit)

## Referenzen

- <https://vuldb.com/vuln/383075>
- <https://vuldb.com/vuln/383075/cti>
- <https://vuldb.com/cve/CVE-2026-17434>
- <https://vuldb.com/submit/862451>
- <https://github.com/nanocoai/nanoclaw/issues/2762>
- <https://github.com/nanocoai/nanoclaw/pull/2998>
- <https://github.com/nanocoai/nanoclaw/commit/e5b928783d5c485637565eb07d2967922dfbf8d8>
- <https://github.com/nanocoai/nanoclaw/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-17434) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_