# CVE-2026-69219

## Summary

- **CVE ID:** CVE-2026-69219
- **Severity:** HIGH
- **CVSS Score:** 8.7 (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)
- **CWE:** CWE-789
- **Published:** Aug 18, 2026
- **Last Modified:** Aug 19, 2026

## Description

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.

## Affected Products

- rabbitmq — rabbitmq-java-client (< 5.33.1)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.42%
- **EPSS Percentile:** 35.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._