Echo: com.rabbitmq:amqp-client: security update to 5.33.0

high Tenable Cloud Security Plugin ID 457073

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with
RabbitMQ nodes. Prior to 5.33.0, com.rabbitmq.tools.jsonrpc.ProcedureDescription receives a javaReturnType
value in an untrusted system.describe response and passes it through JSONUtil.tryFill, setJavaReturnType,
and computeReturnTypeAsJavaClass to Class.forName(javaReturnType) with initialization enabled. An attacker
able to answer the JsonRpcClient request through a shared broker or network interception can select a
class already present in the victim JVM and trigger its static initializer, while JsonRpcClient.java later
passes getReturnType output to mapper.parse and may also create type confusion. Successful exploitation
can affect confidentiality, integrity, and availability in the client process. This issue is fixed in
version 5.33.0. (CVE-2026-63337)

Solution

Update the com.rabbitmq:amqp-client library and its related packages to version 5.33.0 or later.

Plugin Details

Severity: High

ID: 457073

Version: Revision 1.1

Type: Local

Family: Echo Local Security Checks

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.17

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2026-63337

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.5

Threat Score: 4.8

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 8/18/2026

Reference Information

CVE: CVE-2026-63337

Detections

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