---
cve: "CVE-2026-38822"
severity: "HIGH"
cvss: 7.6
epss: "20.1%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-08-28 02:16:21"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T13:52:47+02:00"
---

# CVE-2026-38822

> 7.6 HIGH

## Beschreibung

In openNDS before 11.0.0, the client_params.sh script, invoked by the openNDS daemon to serve the authenticated client status page, is vulnerable to OS command injection through crafted HTTP GET query parameter keys. An authenticated captive portal user can inject arbitrary shell commands by embedding semicolons in a URL query parameter name.

## CVSS-Vektor

```
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Benachbart | warn |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- 9477b224bfd6d7f27ab1f1931afb61580b9470d1 (Commit)
- 294983e859bb678eef7db06fc9f6afab0b489d8e (Commit)

## Referenzen

- <https://github.com/openNDS/openNDS/commit/294983e859bb678eef7db06fc9f6afab0b489d8e>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-38822) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_