---
cve: "CVE-2026-72659"
severity: "MEDIUM"
cvss: 6.5
epss: "29%"
vendor: "Elastic"
kev: false
exploited: false
published: "2026-08-13 19:12:52"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-05T19:03:12+02:00"
---

# CVE-2026-72659

> 6.5 MEDIUM

## Beschreibung

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A specially crafted, malformed payload submitted to a Kibana visualization feature by an authenticated user holding only low-privileged access is not correctly validated before use. Processing the request causes unbounded memory growth in the Kibana process, which is terminated by the host once available memory is exhausted. Kibana then becomes unavailable to all users until the service is restarted.

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-770** — Allocation of Resources Without Limits or Throttling
  The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

## Angriffsmuster (CAPEC)

- [CAPEC-125 — Flooding](https://capec.mitre.org/data/definitions/125.html) _(Severity: Medium)_
- [CAPEC-130 — Excessive Allocation](https://capec.mitre.org/data/definitions/130.html) _(Severity: Medium)_
- [CAPEC-147 — XML Ping of the Death](https://capec.mitre.org/data/definitions/147.html) _(Severity: Medium)_
- [CAPEC-197 — Exponential Data Expansion](https://capec.mitre.org/data/definitions/197.html) _(Severity: Medium)_
- [CAPEC-229 — Serialized Data Parameter Blowup](https://capec.mitre.org/data/definitions/229.html) _(Severity: High)_
- [CAPEC-230 — Serialized Data with Nested Payloads](https://capec.mitre.org/data/definitions/230.html) _(Severity: High)_
- [CAPEC-231 — Oversized Serialized Data Payloads](https://capec.mitre.org/data/definitions/231.html) _(Severity: High)_
- [CAPEC-469 — HTTP DoS](https://capec.mitre.org/data/definitions/469.html) _(Severity: Low)_

## ATT&CK-Techniken

- [T1498.001 — Network Denial of Service: Direct Network Flood](https://attack.mitre.org/techniques/T1498/001/)
- [T1499 — Endpoint Denial of Service](https://attack.mitre.org/techniques/T1499/)
- [T1499.003 — Endpoint Denial of Service:Application Exhaustion Flood](https://attack.mitre.org/techniques/T1499/003/)
- [T1499.002 — Endpoint Denial of Service: Service Exhaustion Flood](https://attack.mitre.org/techniques/T1499/002/)

## Patch verfügbar (OSV)

- 91f5381ece296ddc32b554f997269478b9224af8 (Commit)
- adc1f04ffdd393d1977990338d5512c5eaf1ce94 (Commit)

## Referenzen

- <https://discuss.elastic.co/t/kibana-8-19-20-9-4-5-security-update-esa-2026-100/389519>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-72659) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_