Assessment
Why it matters
EPSS is 0.8%; technical severity is CVSS 8.7.
RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the obsolete GET /api/auth endpoint can disclose the OAuth 2 client secret on RabbitMQ installations configured with management.oauth_client_secret, exposing credentials to unauthenticated callers when the management plugin and that OAuth configuration are enabled. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
Who should care
- Teams operating Rabbitmq Server
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Rabbitmq Server is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- GitHub Security patch 98b1daf740237c85941e8addcbea6e74f4a2743c
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Patch
Technical details
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CWE
- CWE-200
- Affected versions
- Broadcom Rabbitmq Server (Start Including 3.13.0, End Excluding 4.2.6)
- Fixed versions
- Broadcom Rabbitmq Server (Fixed from 4.2.6)
- Published
- 10 July 2026
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
Signal timeline
- CVE published
- Latest EPSS score: 0.8%
- Signal calculated at 14