---
cve: "CVE-2026-89419"
severity: "MEDIUM"
cvss: 5.0
epss: "0.3%"
vendor: "OpenStack"
kev: false
exploited: false
published: "2026-10-23 04:18:19"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-11-01T09:13:31+01:00"
---

# CVE-2026-89419

> 5.0 MEDIUM

## Beschreibung

OpenStack Ironic before 39.0.1 sometimes allows a user to change the maintenance setting on a node via PATCH to /v1/nodes/{ident} - in other words, not using the specific maintenance endpoint.

## CNA-Record (Kanon, cvelistV5)

- CNA: **mitre**
- State: PUBLISHED
- Stand: 2026-10-23 04:13:15
- CNA-CVSS: **5.0** (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L`)

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-424** — Improper Protection of Alternate Path
  The product does not sufficiently protect all possible paths that a user can take to access restricted functionality or resources.

## Angriffsmuster (CAPEC)

- [CAPEC-127 — Directory Indexing](https://capec.mitre.org/data/definitions/127.html) _(Severity: Medium)_
- [CAPEC-554 — Functionality Bypass](https://capec.mitre.org/data/definitions/554.html) _(Severity: High)_

## ATT&CK-Techniken

- [T1083 — File and Directory Discovery](https://attack.mitre.org/techniques/T1083/)

## Referenzen

- <https://bugs.launchpad.net/ironic/+bug/2166510>
- <https://security.openstack.org/ossa/OSSA-2026-048.html>
- <http://www.openwall.com/lists/oss-security/2026/10/22/7>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-89419/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_