---
cve: "CVE-2026-27314"
severity: "HIGH"
cvss: 8.8
epss: "0.3%"
vendor: "Apache Software Foundation"
kev: false
exploited: false
published: "2026-04-07 17:16:27"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-11-10T18:35:09+01:00"
---

# CVE-2026-27314

> 8.8 HIGH

## Beschreibung

Privilege escalation in Apache Cassandra 5.0 on an mTLS environment using MutualTlsAuthenticator allows a user with only CREATE permission to associate their own certificate identity with an arbitrary role,
including a superuser role, and authenticate as that role via ADD IDENTITY.

Users are recommended to upgrade to version 5.0.7+, which fixes this issue.

## CNA-Record (Kanon, cvelistV5)

- CNA: **apache**
- State: PUBLISHED
- Stand: 2026-04-08 03:55:52

## CISA-Anreicherung (vulnrichment/ADP)

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

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-267** — Privilege Defined With Unsafe Actions
  A particular privilege, role, capability, or right can be used to perform unsafe actions that were not intended, even when it is assigned to the correct entity.

## Angriffsmuster (CAPEC)

- [CAPEC-58 — Restful Privilege Elevation](https://capec.mitre.org/data/definitions/58.html) _(Severity: High)_
- [CAPEC-634 — Probe Audio and Video Peripherals](https://capec.mitre.org/data/definitions/634.html) _(Severity: High)_
- [CAPEC-637 — Collect Data from Clipboard](https://capec.mitre.org/data/definitions/637.html) _(Severity: Low)_
- [CAPEC-643 — Identify Shared Files/Directories on System](https://capec.mitre.org/data/definitions/643.html) _(Severity: Medium)_
- [CAPEC-648 — Collect Data from Screen Capture](https://capec.mitre.org/data/definitions/648.html) _(Severity: Medium)_

## ATT&CK-Techniken

- [T1123 — Audio Capture](https://attack.mitre.org/techniques/T1123/)
- [T1125 — Video Capture](https://attack.mitre.org/techniques/T1125/)
- [T1115 — Clipboard Data](https://attack.mitre.org/techniques/T1115/)
- [T1135 — Network Share Discovery](https://attack.mitre.org/techniques/T1135/)
- [T1113 — Screen Capture](https://attack.mitre.org/techniques/T1113/)
- [T1513 — Screen Capture](https://attack.mitre.org/techniques/T1513/)

## Patch verfügbar (OSV)

- 0269fd5665751e8a6d8eab852e0f66c142b10ee6 (Commit)

## BSI-Hinweise (deutsch)

- [Apache Cassandra: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-1009) — _BSI-Einstufung: hoch_
  Ein Angreifer kann mehrere Schwachstellen in Apache Cassandra ausnutzen, um seine Privilegien zu erhöhen, um Informationen offenzulegen, und um einen Denial of Service Angriff durchzuführen.

## Referenzen

- <https://lists.apache.org/thread/zrng82ddy4rpsmfyk582v6hqxcqrbz7f>
- <http://www.openwall.com/lists/oss-security/2026/04/07/7>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-27314/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_