---
cve: "CVE-2026-75880"
severity: "MEDIUM"
cvss: 6.5
epss: "6.6%"
vendor: "Apache"
kev: false
exploited: false
published: "2026-09-10 05:17:01"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-15T18:49:41+02:00"
---

# CVE-2026-75880

> 6.5 MEDIUM

## Beschreibung

An authenticated client could attach a consumer with a selector containing crafted wildcard usage that results in excessive evaluation during message delivery attempts, occupying a shared broker thread and leading to denial of service.

This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0.


Users are recommended to upgrade to version 2.57.0, which fixes this issue.

## 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 |

## Referenzen

- <https://lists.apache.org/thread/db34g9qoxd8p08086cr95683fkb8wm5r>
- <http://www.openwall.com/lists/oss-security/2026/09/10/7>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-75880) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_