---
cve: "CVE-2026-63142"
severity: "MEDIUM"
cvss: 5.0
epss: "0.3%"
vendor: "Elastic"
kev: false
exploited: false
published: "2026-07-21 22:04:28"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-21T11:36:31+02:00"
---

# CVE-2026-63142

> 5.0 MEDIUM

## Beschreibung

Incomplete List of Disallowed Inputs (CWE-184) in Kibana can allow an authenticated attacker with access to the Reporting feature to bypass outbound request restrictions configured by an administrator, causing the reporting service to send requests to network destinations that should be denied by the configured security policy.

## CNA-Record (Kanon, cvelistV5)

- CNA: **elastic**
- State: PUBLISHED
- Stand: 2026-07-22 13:35:35
- CNA-CVSS: **5.0** (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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:L/PR:L/UI:N/S:C/C:L/I:N/A:N
```

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

## Schwachstellen-Klasse

- **CWE-184** — Incomplete List of Disallowed Inputs
  The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.

## Angriffsmuster (CAPEC)

- [CAPEC-3 — Using Leading 'Ghost' Character Sequences to Bypass Input Filters](https://capec.mitre.org/data/definitions/3.html) _(Severity: Medium)_
- [CAPEC-6 — Argument Injection](https://capec.mitre.org/data/definitions/6.html) _(Severity: High)_
- [CAPEC-15 — Command Delimiters](https://capec.mitre.org/data/definitions/15.html) _(Severity: High)_
- [CAPEC-43 — Exploiting Multiple Input Interpretation Layers](https://capec.mitre.org/data/definitions/43.html) _(Severity: High)_
- [CAPEC-71 — Using Unicode Encoding to Bypass Validation Logic](https://capec.mitre.org/data/definitions/71.html) _(Severity: High)_
- [CAPEC-73 — User-Controlled Filename](https://capec.mitre.org/data/definitions/73.html) _(Severity: High)_
- [CAPEC-120 — Double Encoding](https://capec.mitre.org/data/definitions/120.html) _(Severity: Medium)_
- [CAPEC-182 — Flash Injection](https://capec.mitre.org/data/definitions/182.html) _(Severity: Medium)_

## Patch verfügbar (OSV)

- 0b6bd198d583b8566336c0db61afb70b346c6882 (Commit)
- 171dd53e53c29b91f45d2d87857a3f74db48cca5 (Commit)

## BSI-Hinweise (deutsch)

- [Kibana: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-2464) — _BSI-Einstufung: mittel_
  Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Kibana ausnutzen, um Sicherheitsvorkehrungen zu umgehen, einen Denial-of-Service-Zustand auszulösen oder Daten offenzulegen und zu manipulieren.

## Referenzen

- <https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-66/388568>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-63142/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_