[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fApxL5e_tc3mvrH1sLmrKW7p09OgQRWkxByo6LXsAiio":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"status":25,"created_at":26,"published_at":27,"article":28,"tags":32,"podcasts":51},"a4359c42-d8cf-450c-91fd-fd6e919d778f","rabbitmq-oauth-secret-leak-and-cross-tenant-exposure-highlight-broker-security-risks","52c33b3a-636e-420e-86d5-fdc434868c05","RabbitMQ OAuth Secret Leak and Cross-Tenant Exposure Highlight Broker Security Risks","Two access control vulnerabilities in RabbitMQ expose organizations to serious risk: one allows full broker takeover by leaking OAuth client secrets through an obsolete HTTP endpoint, while the other enables authenticated users to enumerate metadata belonging to other tenants' queues. The root cause lies in inadequate access control enforcement—failing to retire deprecated API endpoints and failing to enforce strict tenant isolation at the data layer. These flaws are particularly dangerous in multi-tenant environments where message brokers handle sensitive inter-service communications. Prompt patching is critical, as CVSS scores of 8.7 and 5.3 indicate high exploitability once an attacker gains even limited authenticated access. The existence of an obsolete endpoint still capable of exposing secrets also underscores the importance of ongoing configuration hygiene and API surface reduction.","**Immediate actions:**\n- Upgrade all RabbitMQ instances to patched versions 4.3.0, 4.2.6, 4.1.11, 4.0.20, or 3.13.15 immediately.\n- Audit and revoke any OAuth client secrets that may have been exposed via the vulnerable HTTP endpoint.\n- Restrict network access to RabbitMQ management APIs using firewall rules or API gateway policies.\n\n**Long-term improvements:**\n- Implement a formal API lifecycle management process to identify and decommission obsolete or legacy endpoints before they become attack surfaces.\n- Enforce strict tenant isolation at the authorization layer for all multi-tenant message broker deployments.\n- Maintain a continuously updated software inventory (SBOM) to enable rapid identification of affected versions during future vulnerability disclosures.\n\n**Detection measures:**\n- Enable detailed logging on RabbitMQ management API endpoints and alert on anomalous access patterns, especially to deprecated routes.\n- Deploy automated vulnerability scanning tools that monitor messaging infrastructure components for known CVEs on a scheduled basis.\n- Implement secret rotation procedures and monitor credential usage logs for signs of unauthorized OAuth token activity.",[12,13,14,15,16,17,18,19,20,21,22,23,24],"CIS Control 2: Inventory and Control of Software Assets","CIS Control 7: Continuous Vulnerability Management","CIS Control 4: Secure Configuration of Enterprise Assets","NIST SP 800-53 AC-3: Access Enforcement","NIST SP 800-53 AC-4: Information Flow Enforcement","NIST SP 800-53 IA-5: Authenticator Management (credential rotation)","NIST SP 800-53 SI-2: Flaw Remediation","NIST SP 800-53 CM-7: Least Functionality (disable unused endpoints)","OWASP API Security Top 10: API3:2023 Broken Object Property Level Authorization","OWASP API Security Top 10: API1:2023 Broken Object Level Authorization","GDPR Article 25: Data Protection by Design and by Default (tenant data isolation)","GDPR Article 32: Security of Processing (appropriate technical measures)","ITIL Change Management: Emergency Change procedures for critical patches","published","2026-07-14T16:20:53.623724+00:00","2026-07-14T16:20:53.321+00:00",{"id":7,"url":29,"slug":30,"title":31},"https:\u002F\u002Fthehackernews.com\u002F2026\u002F07\u002Frabbitmq-flaws-could-leak-oauth-secrets.html","rabbitmq-flaws-could-leak-oauth-secrets-and-expose-cross-tenant-queue-metadata-32eaa1","RabbitMQ Flaws Could Leak OAuth Secrets and Expose Cross-Tenant Queue Metadata",[33,39,45],{"id":34,"name":35,"slug":36,"description":37,"color":38},"05757c8d-6b93-4194-b35d-7359e7d33b0e","Vulnerability Management","vulnerability-management","Missing scans, no risk prioritization","#fb923c",{"id":40,"name":41,"slug":42,"description":43,"color":44},"1ec88fde-2d0f-4ed8-932a-33f5ccc0fdc7","Access Control","access-control","Excessive privileges, missing MFA, weak auth","#f97316",{"id":46,"name":47,"slug":48,"description":49,"color":50},"af7fce9e-1ce8-4156-93bc-09dcfbfdf29d","Patch Management","patch-management","Unpatched vulnerabilities, delayed updates","#ef4444",[]]