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CVE-2026-67414— RabbitMQ AMQP 1.0 parser: amplification memory-exhaustion DoS via zero-width array aggregation

一分钟漏洞结论

影响对象
rabbitmq rabbitmq-server
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。

RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.24, 4.1.15, 4.2.10, and 4.3.4, deps/amqp10_common/src/amqp10_binary_parser.erl materializes each element of AMQP 1.0 arrays whose shared constructor has zero width, while limiting only the numb

CVSS 6.0 · Medium

影响版本矩阵 4

厂商产品 版本范围状态
rabbitmq rabbitmq-server >= 4.0.0, < 4.0.24 affected
>= 4.1.0, < 4.1.15 affected
>= 4.2.0, < 4.2.10 affected
>= 4.3.0, < 4.3.4 affected
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一、 漏洞 CVE-2026-67414 基础信息

漏洞信息

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Vulnerability Title
RabbitMQ AMQP 1.0 parser: amplification memory-exhaustion DoS via zero-width array aggregation
来源: CVE Program / CVE List V5
Vulnerability Description
RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.24, 4.1.15, 4.2.10, and 4.3.4, deps/amqp10_common/src/amqp10_binary_parser.erl materializes each element of AMQP 1.0 arrays whose shared constructor has zero width, while limiting only the number of elements in each array and not the aggregate arrays in a frame. After completing SASL authentication, a low-privilege client can send an ordinary frame containing many individually permitted arrays, causing a small frame to expand into a very large reader-process heap before later frame validation or authorization. Because deps/rabbit/src/rabbit_amqp_reader.erl clears the pre-authentication max_heap_size guard after login, repeated or concurrent frames can trigger the node-wide memory alarm, block publishers, or exhaust broker memory. This issue is fixed in versions 4.0.24, 4.1.15, 4.2.10, and 4.3.4.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
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-server >= 4.0.0, < 4.0.24 -

二、漏洞 CVE-2026-67414 的公开POC

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三、漏洞 CVE-2026-67414 的情报信息

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CVE-2026-67414 补丁与修复 (1)

CVE-2026-67414 其他参考 (2)

同批安全公告 · rabbitmq · 2026-10-14 · 共 3 条

CVE-2026-67416 5.3 MEDIUM RabbitMQ: AMQP 1.0 symbolic body descriptor prefix collisions bypass validation
CVE-2026-67418 5.3 MEDIUM RabbitMQ MQTT 5: inapplicable PUBLISH property disconnects matching subscribers

IV. Related Vulnerabilities

Same product: rabbitmq-server
Same vendor: rabbitmq
Same weakness: CWE-400

V. Comments for CVE-2026-67414

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