CVE-2026-67225— RabbitMQ: Stream-protocol frame length never validated against frame_max
Quick assessment
Affected
rabbitmq rabbitmq-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
RabbitMQ 是一款消息和流式传输中间件。在版本 3.13.0 至 3.13.14、4.0.0 至 4.0.19、4.1.0 至 4.1.10 以及 4.2.0 至 4.2.5 中，Stream 协议在 Tune 握手阶段协商了 FrameMax 值，但在缓存帧之前，并未将该值与入站帧声明的长度进行比较。当启用 Stream 插件时，远程客户端可以通过声明一个超大的帧，导致内存压力过大并引发拒绝服务（DoS）攻击。该问题已在版本 3.13.15、4.0.20、4.1.11 和 4.2.6 中得到修复。
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I. Basic Information for CVE-2026-67225
Vulnerability Information
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Vulnerability Title
RabbitMQ: Stream-protocol frame length never validated against frame_max
Source: CVE Program / CVE List V5
Vulnerability Description
RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the stream protocol stored the FrameMax value negotiated during the Tune handshake but did not compare it with an inbound frame's declared length before buffering the frame. With the stream plugin enabled, a remote client could therefore cause excessive memory pressure and denial of service by declaring an oversized frame. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| rabbitmq | rabbitmq-server | >= 3.13.0, < 3.13.15 | - |
|
II. Public POCs for CVE-2026-67225
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2026-67225 (1)
Other References for CVE-2026-67225 (1)
Same Patch Batch · rabbitmq · 2026-09-25 · 28 CVEs total
| CVE-2026-67236 | 8.2 HIGH | RabbitMQ: Plaintext username:password stored in an insecure cookie after successful POST / |
| CVE-2026-67409 | 8.2 HIGH | RabbitMQ: JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Au |
| CVE-2026-67410 | 8.2 HIGH | RabbitMQ: OAuth2 Client Secret Exposed via Unauthenticated JavaScript Endpoint |
| CVE-2026-67239 | 7.6 HIGH | RabbitMQ: Stored XSS via TLS peer-certificate DN in stream-management UI |
| CVE-2026-67237 | 7.5 HIGH | RabbitMQ: Reflected XSS via the OAuth bootstrap JS endpoint |
| CVE-2026-67408 | 7.1 HIGH | RabbitMQ: Stream Management Super-Stream Binding Keys Allocation Allows Low-Privilege Node |
| CVE-2026-67419 | 7.1 HIGH | RabbitMQ: Consecutive topic wildcards cause combinatorial routing work |
| CVE-2026-67226 | 6.9 MEDIUM | RabbitMQ: Admin-only atom exhaustion: PUT /api/users tags list |
| CVE-2026-61837 | 6.3 MEDIUM | RabbitMQ: AMQP 1.0 management `GET /bindings` exposes full binding topology to any authent |
| CVE-2026-67242 | 6.3 MEDIUM | RabbitMQ: OAuth2 is_integer(Exp) guard skips token-expiry checks for float exp |
| CVE-2026-67230 | 6.3 MEDIUM | RabbitMQ: Web-STOMP unbounded pre-auth accumulation |
| CVE-2026-67223 | 6.3 MEDIUM | RabbitMQ: LDAP DN injection via unescaped substitution |
| CVE-2026-67411 | 6.0 MEDIUM | RabbitMQ: Web MQTT with PROXY Protocol enabled: a loopback-only user permission bypass |
| CVE-2026-66073 | 6.0 MEDIUM | RabbitMQ: Atom table exhaustion via management API node field |
| CVE-2026-67412 | 6.0 MEDIUM | RabbitMQ: Federation upstream skips vhost authorization allowing cross-vhost message acces |
| CVE-2026-67413 | 6.0 MEDIUM | RabbitMQ: Authenticated RabbitMQ JMS Topic Selector Users Can Consume Broker CPU with an U |
| CVE-2026-66071 | 6.0 MEDIUM | RabbitMQ: Atom exhaustion: OAuth2 JWT tag: scope values |
| CVE-2026-67415 | 5.9 MEDIUM | RabbitMQ: Shovel Management Atom Exhaustion Allows Persistent Broker-Wide Denial of Servic |
| CVE-2026-67222 | 5.9 MEDIUM | RabbitMQ: list_to_atom on auth_mechanism URI tokens in amqp_client |
| CVE-2026-67227 | 5.9 MEDIUM | RabbitMQ: Atom exhaustion: to_atom on global-parameter :name |
Showing top 20 of 28 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: rabbitmq-server
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CVE-2026-67420
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CVE-2026-67408
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CVE-2026-67406
RabbitMQ: Federation and Shovel Gen-Servers Lack format_stat
Same vendor: rabbitmq
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Same weakness: CWE-770
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