---
cve: "CVE-2026-90808"
severity: "MEDIUM"
cvss: 5.3
epss: "0.3%"
vendor: "HKUDS"
kev: false
exploited: false
published: "2026-09-14 19:18:10"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T00:28:23+02:00"
---

# CVE-2026-90808

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

A vulnerability was determined in HKUDS nanobot up to 0.2.1. Impacted is the function ExecTool._guard_command/ExecTool._spawn of the file nanobot/agent/tools/shell.py of the component ExecTool. This manipulation causes incomplete blacklist. It is possible to initiate the attack remotely. Patch name: af582246f141311d574551b7571a517bcc3df750. Applying a patch is the recommended action to fix 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:X
```

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

## Patch verfügbar (OSV)

- af582246f141311d574551b7571a517bcc3df750 (Commit)

## Referenzen

- <https://vuldb.com/vuln/403310>
- <https://vuldb.com/vuln/403310/cti>
- <https://vuldb.com/cve/CVE-2026-90808>
- <https://vuldb.com/submit/922849>
- <https://github.com/HKUDS/nanobot/issues/5305>
- <https://github.com/HKUDS/nanobot/pull/5345>
- <https://github.com/HKUDS/nanobot/commit/af582246f141311d574551b7571a517bcc3df750>
- <https://github.com/HKUDS/nanobot/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-90808) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_