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TI-2026-47691 Aliases CVE-2026-67406

Information disclosure in rabbitmq-server

Priority LOW 21CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Information disclosure
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-200.

Summary

RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.3.3, 4.2.9, 4.1.14, and 4.0.23, Shovel does not format state logged by the crash reporter and can leave unencrypted credentials in a crash dump file. the shovel worker genserver processes does not implement the formatstatus/2 callback. When these processes crash (e.g., due to network partitions, connection failures), the OTP SASL error handler writes the full process state , including plaintext AMQP passwords and URIs , to the error log. This is particularly severe for the shovel worker, which stores deobfuscated plaintext URIs (including amqp://user:password@host format) in its genserver state for the entire process Automatic Credential Exposure: Shovel worker crashes (common during network partitions) automatically write plaintext upstream/downstream passwords to error logs No Special Configuration Needed: Unlike DEBUG logging, SASL error reports are always active Broad. This issue is fixed in versions 4.3.3, 4.2.9, 4.1.14, and 4.0.23.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00343 27th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed rabbitmq-server (rabbitmq): 4.3.3, 4.2.9, 4.1.14 +1Red Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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

VendorProductAffected versionsFixed inStatusSource
rabbitmqrabbitmq-server4.3.0 to before 4.3.3; 4.2.0 to before 4.2.9; 4.1.0 to before 4.1.14; 4.0.0 to before 4.0.234.3.3, 4.2.9, 4.1.14, 4.0.23Patch availableCNA
  • 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 4.1.14; 4.0.0 to before 4.0.23 Fixed in 4.3.3, 4.2.9, 4.1.14, 4.0.23 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*4.0.0 to before 4.0.23; 4.1.0 to before 4.1.14; 4.2.0 to before 4.2.9; 4.3.0 to before 4.3.3VulnerableBroadcom
  • cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.0.23; 4.1.0 to before 4.1.14; 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, 4.1.14, 4.0.23

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 →

ProductStatusPlan or fix
Red Hat Hardened ImagesFixed RHSA-2026:67552
Not affected: 5 products
  • Red Hat Hardened Images
  • Red Hat OpenStack Platform 13 (Queens)
  • Red Hat OpenStack Platform 16.2
  • Red Hat OpenStack Platform 17.1
  • Red Hat OpenStack Platform 18.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-67406
  2. 2026-10-16 CVSS score added · NVD

References

Exploit 1

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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences