---
cve: "CVE-2026-84462"
severity: "HIGH"
cvss: 8.6
epss: "0.3%"
vendor: "Zammad"
kev: false
exploited: false
published: "2026-09-25 18:17:30"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-01T11:25:03+02:00"
---

# CVE-2026-84462

> 8.6 HIGH · 🧪 PoC

## Beschreibung

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, a security filter that protects Zammad's AI Agent configuration can be bypassed by entering specially crafted text into one of an AI Agent's fields. An administrator with permission to create or edit AI Agents could exploit this to run arbitrary commands on the server that hosts Zammad, potentially reading, modifying, or destroying all data stored on that server. No interaction from other users is needed; the malicious code runs automatically the next time the affected AI Agent processes a ticket. This issue is fixed in version 7.1.2.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

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

## Patch verfügbar (OSV)

- e3b0c8df91ad2108c8305be23e8fe6f73fb9718d (Commit)

## BSI-Hinweise (deutsch)

- [Zammad: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-2641) — _BSI-Einstufung: hoch_
  Ein Angreifer kann mehrere Schwachstellen in Zammad ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen oder sich unbefugten Zugriff auf bestehende Benutzerkonten zu verschaffen, einschließlich Agenten- und Administratorkonten.

## Referenzen

- <https://github.com/zammad/zammad/security/advisories/GHSA-gp3x-9xm8-rcj6>
- <https://github.com/zammad/zammad/commit/e3b0c8df91ad2108c8305be23e8fe6f73fb9718d>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-84462) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_