TI-2026-47693 Aliases CVE-2026-67408

RabbitMQ: Stream Management Super-Stream Binding Keys Allocation Allows Low-Privilege Node Denial of Service

MEDIUM 64CWE-400Published 2026-09-25 · Updated 2026-09-25

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 1 fixed, 5 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

RabbitMQ is a messaging and streaming broker. From 4.1.0 until 4.3.3, 4.2.9, and 4.1.11, Stream Management Super-Stream Binding Keys Allocation Allows Low-Privilege Node Denial of Service. rabbitMQ 4.3.1 with rabbitmqstreammanagement enabled accepts PUT /api/stream/super-streams/{vhost}/{name} requests from an authenticated management user that can access the target vhost. When the request body contains the binding-keys field, the handler parses the attacker-controlled comma-separated string and builds the full stream-name list before checking whether the user has permission to configure the resulting streams. A low-privileged management user with vhost access but no configure, write, or read permission can therefore force large transient allocations before the resource permission check. In a 768 MB memory-limited container, one HTTP PUT with about 4.5 MB of JSON body killed the RabbitMQ container with Docker state exited true An authenticated low-privileged management user can kill a memory-limited RabbitMQ node with one HTTP This issue is fixed in versions 4.3.3, 4.2.9, and 4.1.11.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00445 38th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Partial rabbitmq-server (rabbitmq): 4.3.3, 4.2.9, 4.1.11Red Hat: 1 advisoryRed Hat: 1 fixed, 5 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
rabbitmq	rabbitmq-server	4.3.0 to before 4.3.3; 4.2.0 to before 4.2.9; 4.1.0 to before 4.1.11	4.3.3, 4.2.9, 4.1.11	Patch available	CNA

rabbitmq-server Vendorrabbitmq Affected 4.3.0 to before 4.3.3; 4.2.0 to before 4.2.9; 4.1.0 to before 4.1.11 Fixed in 4.3.3, 4.2.9, 4.1.11 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:broadcom:rabbitmq_server::::::::	4.1.0 to before 4.1.11; 4.2.0 to before 4.2.9; 4.3.0 to before 4.3.3	Vulnerable	Broadcom

cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:* Versions 4.1.0 to before 4.1.11; 4.2.0 to before 4.2.9; 4.3.0 to before 4.3.3 Vulnerable ·Broadcom

Remediation

Fix · CNA rabbitmq-server (rabbitmq) Fixed in 4.3.3, 4.2.9, 4.1.11

Red Hat 1 advisory

RHSA-2026:67552 Released 2026-09-15 · Red Hat rating Important
Red Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images rabbitmq-server4.3-4.3.6-1.hum1@aarch64, rabbitmq-server4.3-4.3.6-1.hum1@src, rabbitmq-server4.3-4.3.6-1.hum1@x86_64

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Hardened Images	Affected	No fix planned: Will not fix
Red Hat OpenStack Platform 13 (Queens)	Affected	No fix yet: Fix deferred
Red Hat OpenStack Platform 16.2	Affected	No fix yet: Fix deferred
Red Hat OpenStack Platform 17.1	Affected	No fix yet: Fix deferred
Red Hat OpenStack Platform 18.0	Affected	No fix yet: Fix deferred
Red Hat Hardened Images	Fixed	RHSA-2026:67552

Timeline

2026-10-02 Threatist record created from CVE-2026-67408
2026-10-09 CVSS score added · NVD
2026-11-04 Affected versions changed · Red Hat

References

Exploit 1

https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-2hm4-4438-49q8

Patch 2

Other 2

TI-2026-41154 Improper authentication in rabbitmq-server CVSS 3.1CRITICAL 10.0
TI-2026-41149 RabbitMQ: UNC SSRF affecting the management UI on Windows CVSS 3.1CRITICAL 10.0
TI-2026-41158 Resource allocation without limits in rabbitmq-server CVSS 3.1HIGH 7.5
TI-2026-47695 RabbitMQ: OAuth2 Client Secret Exposed via Unauthenticated JavaScript Endpoint CVSS 4.0HIGH 8.2
TI-2026-47694 RabbitMQ: JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS CVSS 4.0HIGH 8.2
TI-2026-45167 RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading CVSS 4.0HIGH 7.5

See all 100 →

Sources

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