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CVE-2026-67239— RabbitMQ: Stored XSS via TLS peer-certificate DN in stream-management UI

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 是一种消息和流式传输代理。在版本 3.13.0 至 3.13.18、4.0.23、4.1.14、4.2.9 和 4.3.3 中，存在一个通过 TLS 对等证书主体名称（DN）在流管理界面（stream-management UI）中触发的存储型跨站脚本（Stored XSS）漏洞（该漏洞与 V-11 漏洞同源）。具体而言，代码第 102/106/110 行使用原始语法渲染和，且未使用格式化字符串函数（）。尽管 RFC4514 规范中对和进行了反斜杠转义，使其在 HTML 中表现为惰性

CVSS 7.6 · High EPSS 0.27% · P17 Updated Sep 28, 2026

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Vulnerability Information

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Vulnerability Title

RabbitMQ: Stored XSS via TLS peer-certificate DN in stream-management UI

Source: CVE Program / CVE List V5

Vulnerability Description

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.18 and 4.0.23 and 4.1.14 and 4.2.9 and 4.3.3, Stored XSS via TLS peer-certificate DN in stream-management UI (sibling of V-11). lines 102/106/110 render peercertsubject / peercertissuer with raw <%= %> and no fmtstring(). RFC4514 backslash-escaping of </> is HTML-inert and bypassable (<img ... //>). Requires non-default config: a stream TLS listener with verifypeer and an attacker-obtainable trusted cert with a malicious Same as the connection.ejs finding, against operators viewing the stream-connection detail rabbitmqstream + rabbitmqstreammanagement enabled with a TLS listener using verifypeer Attacker can obtain a certificate signed by a CA the listener trusts, with attacker-chosen DN An operator views the. This issue is fixed in versions 3.13.18 and 4.0.23 and 4.1.14 and 4.2.9 and 4.3.3.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
rabbitmq	rabbitmq-server	>= 3.13.0, < 3.13.18	-

II. Public POCs for CVE-2026-67239

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-67239

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Other References for CVE-2026-67239 (3)

https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.3 x_refsource_MISC
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.9 x_refsource_MISC
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-xm9p-57xv-vxwc x_refsource_CONFIRM

https://www.cve.org/CVERecord?id=CVE-2026-67239

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-2026-67237	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-2026-67225	6.3 MEDIUM	RabbitMQ: Stream-protocol frame length never validated against frame_max
CVE-2026-66073	6.0 MEDIUM	RabbitMQ: Atom table exhaustion via management API node field
CVE-2026-66071	6.0 MEDIUM	RabbitMQ: Atom exhaustion: OAuth2 JWT tag: scope values
CVE-2026-67413	6.0 MEDIUM	RabbitMQ: Authenticated RabbitMQ JMS Topic Selector Users Can Consume Broker CPU with an U
CVE-2026-67412	6.0 MEDIUM	RabbitMQ: Federation upstream skips vhost authorization allowing cross-vhost message acces
CVE-2026-67411	6.0 MEDIUM	RabbitMQ: Web MQTT with PROXY Protocol enabled: a loopback-only user permission bypass
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
CVE-2026-67415	5.9 MEDIUM	RabbitMQ: Shovel Management Atom Exhaustion Allows Persistent Broker-Wide Denial of Servic

Showing top 20 of 28 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: rabbitmq-server

Same vendor: rabbitmq

Same weakness: CWE-79

V. Comments for CVE-2026-67239

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2026-67239— RabbitMQ: Stored XSS via TLS peer-certificate DN in stream-management UI

Quick assessment

I. Basic Information for CVE-2026-67239

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2026-67239

III. Intelligence Information for CVE-2026-67239

Other References for CVE-2026-67239 (3)

Same Patch Batch · rabbitmq · 2026-09-25 · 28 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2026-67239

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