---
id: CVE-2026-61634
title: >-
  The RabbitMQ Java client library allows Java and JVM-based applications to
  connect to and interact with RabbitMQ nodes
summary: >-
  The RabbitMQ Java client library allows Java and JVM-based applications to
  connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP
  connection tuning path records the negotiated AMQP frame_max value, but
  src/main/java/com/r…
severity: low
cwe:
  - CWE-20
  - CWE-805
vendor: rabbitmq
product: 'com.rabbitmq:amqp-client'
affected:
  - 'com.rabbitmq:amqp-client < 5.33.0'
patched:
  - 'com.rabbitmq:amqp-client 5.33.0'
published: '2026-08-18'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T20:30:11.423'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-61634'
references:
  - url: >-
      https://github.com/rabbitmq/rabbitmq-java-client/commit/08790f09686173eb17b48d08a25edcb32e71a591
    label: security-advisories@github.com
  - url: >-
      https://github.com/rabbitmq/rabbitmq-java-client/commit/b491075f42e89967610c40beded68d3680cfd472
    label: security-advisories@github.com
  - url: 'https://github.com/rabbitmq/rabbitmq-java-client/pull/1994'
    label: security-advisories@github.com
  - url: 'https://github.com/rabbitmq/rabbitmq-java-client/pull/1995'
    label: security-advisories@github.com
  - url: 'https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.33.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-5xwg-cfvj-gff5
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-5xwg-cfvj-gff5'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-61634.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-61634'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2518063'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-61634'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-61634'
tags:
  - nvd
  - ghsa
  - maven
  - csaf
  - vex
  - red-hat
epss: 0.00488
epssPercentile: 0.39445
aliases:
  - GHSA-5xwg-cfvj-gff5
ecosystem: maven
ingestedAt: '2026-08-18T17:20:36.448Z'
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
---

## Overview

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP connection tuning path records the negotiated AMQP frame_max value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and NettyFrameHandlerFactory continue to validate broker-controlled frame payload lengths against maxInboundMessageBodySize because the negotiated limit is not applied consistently through setMaxInboundFramePayloadSize. A malicious or compromised broker can send a method frame larger than the negotiated frame_max during or after connection establishment, causing the client to allocate and decode a protocol-invalid frame instead of rejecting it with MalformedFrameException. The protocol violation can disrupt the affected connection and cause client-side denial of service. This issue is fixed in version 5.33.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-61634)

Affected packages:

- `com.rabbitmq:amqp-client < 5.33.0`

Patched in:

- `com.rabbitmq:amqp-client 5.33.0`

Source: https://github.com/advisories/GHSA-5xwg-cfvj-gff5

## Vendor advisories

- **Red Hat VEX** · Important · affected: Red Hat build of Apache Camel 4 for Quarkus 3, Red Hat Fuse 7 · no fix planned: Red Hat build of Apache Camel 4 for Quarkus 3, Red Hat Fuse 7 · updated 2026-09-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-61634.json)