● Covered by 2 sources · 2 reportsMedium impact
Critical RabbitMQ Vulnerabilities Risk Exposing OAuth Secrets and Tenant Data
Key points
- CVE-2026-5721 allows access to OAuth secrets in RabbitMQ.
- Second vulnerability exposes cross-tenant data access.
- Issues affect releases from 3.13.0 onward, patched in later versions.
- No evidence of exploit before disclosure.
Overview of the Vulnerabilities
RabbitMQ has two identified critical vulnerabilities that threaten the security of enterprise systems. CVE-2026-5721 is a major flaw that allows unauthorized access to OAuth secrets through an obsolete endpoint in the management web interface. This permits attackers to impersonate users and potentially access sensitive data.
A second identified vulnerability lets any logged-in user access cross-tenant data, compromising privacy and data integrity across enterprise systems.
Technical Details and Affected Versions
The security defects were discovered by Miggo's cybersecurity team and affect RabbitMQ release lines from 3.13.0 and onward. Particularly, the vulnerabilities involve an obsolete HTTP API endpoint revealing OAuth secrets and inadequate access controls across tenant boundaries.
Both vulnerabilities have been addressed with updates available in versions 4.3.0, 4.2.6, 4.1.11, 4.0.20, and 3.13.15, stressing the need for immediate patches.
Importance of Timely Patching
Although there is no evidence these vulnerabilities have been actively exploited, their severity (with CVSS scores around 8.7) and potential impacts on enterprise data security underline the importance of applying patches urgently.
By updating to the latest versions of RabbitMQ, organizations can secure their systems against these serious security risks, maintaining the confidentiality and integrity of sensitive corporate and user information.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
The daily brief
One email each morning: the day's tech stories, clustered across outlets and summarized. No account needed.
One email a day. Unsubscribe in one click, any time.
Today's brief
Spend a few minutes, get the whole day. Every topic's top stories in one hands-free rundown — listen, watch, or read the transcript.
▶ Play today's brief
New every morning, and the back catalogue is archived by date.
Primary sources
CVE CVE-2026-57214.7 MEDIUM CVE CVE-2026-572215.3 MEDIUM GitHub rabbitmq/rabbitmq-server CVE CVE-2026-572197.5 HIGHHow outlets covered it
Two critical access control vulnerabilities in RabbitMQ can leak OAuth client secrets and expose tenant data. These flaws could allow attackers to take over the broker and access unauthorized data, emphasizing the need for immediate patching and security measures.
A critical RabbitMQ vulnerability (CVE-2026-5721) can expose OAuth secrets, threatening enterprise security. This flaw allows attackers to impersonate users and gain unauthorized access to sensitive information when the management port is accessible.