---
cve: "CVE-2026-21833"
severity: "LOW"
cvss: 3.7
epss: ""
vendor: "HCL Software"
kev: false
exploited: false
published: "2026-10-01 17:17:23"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-10-02T23:39:54+02:00"
---

# CVE-2026-21833

> 3.7 LOW

## Beschreibung

HCL AION is affected by a vulnerability in which the Content-Security-Policy (CSP) HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting (XSS) by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header may reduce the effectiveness of browser-based security controls, potentially resulting in unintended behavior or negative security impacts under certain conditions.

## CNA-Record (Kanon, cvelistV5)

- CNA: **HCL**
- State: PUBLISHED
- Stand: 2026-10-01 18:03:33
- CNA-CVSS: **3.7** (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N`)

## CISA-Anreicherung (vulnrichment/ADP)

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

## CVSS-Vektor

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

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

## Referenzen

- <https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0134082>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-21833) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_