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CVE-2026-69220— RabbitMQ Java client ValueReader: Unbounded recursive table/array nesting causes StackOverflowError DoS

Quick assessment

Affected
rabbitmq rabbitmq-java-client
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RabbitMQ rabbitmq-java-client是RabbitMQ组织的一款信息化产品。 RabbitMQ rabbitmq-java-client 5.33.1之前版本存在资源管理错误漏洞，该漏洞源于ValueReader.java中的readTable和readArray方法递归调用readFieldValue时未限制嵌套深度，恶意AMQP服务器或网络中间人可发送约580层嵌套表触发栈溢出，导致客户端输入处理线程终止，造成拒绝服务。

CVSS 8.7 · High EPSS 0.40% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
rabbitmq rabbitmq-java-client < 5.33.1 affected
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I. Basic Information for CVE-2026-69220

Vulnerability Information
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Vulnerability Title
RabbitMQ Java client ValueReader: Unbounded recursive table/array nesting causes StackOverflowError DoS
Source: CVE Program / CVE List V5
Vulnerability 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 permits ValueReader.readTable and ValueReader.readArray to call ValueReader.readFieldValue recursively for AMQP table type F and AMQP array type A values without a nesting-depth limit. A malicious AMQP server or network intermediary can send approximately 580 nested table levels in the pre-authentication connection.start frame, fitting within the default 131072-byte frame maximum, to trigger StackOverflowError. The error terminates the client input processing thread and causes denial of service. This issue is fixed in version 5.33.1.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
RabbitMQ rabbitmq-java-client 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RabbitMQ rabbitmq-java-client是RabbitMQ组织的一款信息化产品。 RabbitMQ rabbitmq-java-client 5.33.1之前版本存在资源管理错误漏洞，该漏洞源于ValueReader.java中的readTable和readArray方法递归调用readFieldValue时未限制嵌套深度，恶意AMQP服务器或网络中间人可发送约580层嵌套表触发栈溢出，导致客户端输入处理线程终止，造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
rabbitmq rabbitmq-java-client < 5.33.1 -

II. Public POCs for CVE-2026-69220

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 15807 chars
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III. Intelligence Information for CVE-2026-69220

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Patches & Fixes for CVE-2026-69220 (4)

Vendor Advisories for CVE-2026-69220 (1)

Same Patch Batch · rabbitmq · 2026-08-18 · 6 CVEs total

CVE-2026-69219 8.7 HIGH RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unche
CVE-2026-63337 7.5 HIGH RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables a
CVE-2026-63335 6.3 MEDIUM RabbitMQ Java client malformed body frame triggers raw command assembler exception
CVE-2026-63336 5.1 MEDIUM RabbitMQ Java client: TrustEverythingTrustManager used by default in useSslProtocol() enab
CVE-2026-61634 RabbitMQ Java client accepts broker frames larger than the negotiated AMQP frame_max

IV. Related Vulnerabilities

Same product: rabbitmq-java-client
Same vendor: rabbitmq
Same weakness: CWE-674

V. Comments for CVE-2026-69220

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