CVE-2026-75516— RabbitMQ Java client: Frame-level OOM: Math.min(maxInboundMessageBodySize, 0) defeats frame size enforcement
一分钟漏洞结论
影响对象
rabbitmq rabbitmq-java-client
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.34.0, AMQConnection.start() applies Math.min(maxInboundMessageBodySize, frameMax) after Connection.Tune negotiation even though A
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| rabbitmq | rabbitmq-java-client | < 5.34.0 |
affected |
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一、 漏洞 CVE-2026-75516 基础信息
漏洞信息
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Vulnerability Title
RabbitMQ Java client: Frame-level OOM: Math.min(maxInboundMessageBodySize, 0) defeats frame size enforcement
来源: 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 5.34.0, AMQConnection.start() applies Math.min(maxInboundMessageBodySize, frameMax) after Connection.Tune negotiation even though AMQP defines frameMax value zero as unlimited and ConnectionFactory.DEFAULT_FRAME_MAX is zero. When the client default and server-negotiated value are both zero, the result is passed to Utils.framePayloadLimit(int), which interprets zero as Integer.MAX_VALUE and disables the configured maxInboundMessageBodySize cap. A malicious AMQP server, or a man-in-the-middle attacker able to modify Connection.Tune and inject frames into the connection, can then send an oversized frame of any frame type, causing Frame.readFrom() to allocate a large byte array before content-level validation and potentially terminate the client process through memory exhaustion. This issue is fixed in version 5.34.0.
来源: 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
来源: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| rabbitmq | rabbitmq-java-client | < 5.34.0 | - |
|
二、漏洞 CVE-2026-75516 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-75516 补丁与修复 (4)
CVE-2026-75516 其他参考 (2)
-
Release 5.34.0 · rabbitmq/rabbitmq-java-client · GitHub x_refsource_MISC
同批安全公告 · rabbitmq · 2026-09-16 · 共 11 条
| CVE-2026-77411 | 9.5 CRITICAL | RabbitMQ amqp091-go 整数溢出漏洞 |
| CVE-2026-77405 | 9.4 CRITICAL | RabbitMQ amqp091-go 配置缺失 |
| CVE-2026-77408 | 9.1 CRITICAL | RabbitMQ amqp091-go 数据截断与状态损坏漏洞 |
| CVE-2026-77403 | 8.9 HIGH | RabbitMQ amqp091-go 拒绝服务漏洞 |
| CVE-2026-77410 | 8.9 HIGH | RabbitMQ 资源耗尽（OOM）漏洞 |
| CVE-2026-77412 | 8.9 HIGH | RabbitMQ amqp091-go 恶意字段长度导致拒绝服务 |
| CVE-2026-77404 | 8.7 HIGH | RabbitMQ 远程代码执行漏洞 |
| CVE-2026-77409 | 8.2 HIGH | RabbitMQ amqp091-go 拒绝服务漏洞 |
| CVE-2026-77406 | 8.2 HIGH | RabbitMQ 基于AMQP 0.9.1 消费者消息洪泛漏洞 |
| CVE-2026-77407 | 7.0 HIGH | RabbitMQ amqp091-go 明文凭证泄露漏洞 |
IV. Related Vulnerabilities
Same product: rabbitmq-java-client
V. Comments for CVE-2026-75516
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