---
cve: "CVE-2026-69219"
severity: "HIGH"
cvss: 8.7
epss: "40%"
vendor: "rabbitmq"
kev: false
exploited: false
published: "2026-08-18 17:17:01"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T14:25:18+02:00"
---

# CVE-2026-69219

> 8.7 HIGH · 🧪 PoC

## Beschreibung

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a byte array before checking the bytes available in the frame. A malicious AMQP peer can send a LongString or byte-array field with type tag S and a declared length such as 0x7FFFFFFE during the pre-authentication connection.start server-properties table, causing an approximately 2 GB allocation and OutOfMemoryError before readFully consumes data. The resulting memory exhaustion can terminate the JVM and cause denial of service. This issue is fixed in version 5.33.1.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 388209356c6478088efce4d8a07b68e73837a7a0 (Commit)
- 6a87a8dcdc8b4cc4b961a7cdd388276446e5dfb2 (Commit)

## Referenzen

- <https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-68mj-5wr7-6fgg>
- <https://github.com/rabbitmq/rabbitmq-java-client/pull/2007>
- <https://github.com/rabbitmq/rabbitmq-java-client/pull/2008>
- <https://github.com/rabbitmq/rabbitmq-java-client/commit/388209356c6478088efce4d8a07b68e73837a7a0>
- <https://github.com/rabbitmq/rabbitmq-java-client/commit/6a87a8dcdc8b4cc4b961a7cdd388276446e5dfb2>
- <https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.33.1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-69219) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_