Upstream information
Description
RabbitMQ is a messaging and streaming broker. Prior to versions 4.2.7 and 4.3.1, The stream open handler calls only check_vhost_access; it omits the node/vhost/user connection-limit checks that rabbit_reader performs for AMQP. A developer %% FIXME comment at the cited line explicitly acknowledges the gap. No compensating enforcement exists in connection tracking or elsewhere in rabbitmq_stream. An authenticated tenant can fully bypass operator-configured per-user and per-vhost connection caps by connecting via port 5552 instead of 5672. Preconditions include rabbitmq_stream plugin enabled Authenticated stream-protocol credentials Operator relies on per-user/per-vhost connection limits for tenant isolation. This issue is fixed in versions 4.2.7 and 4.3.1.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 6.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 6 | 7.1 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/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 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Attack Requirements | Present | None |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Vulnerable System Confidentiality Impact | None | None |
| Vulnerable System Integrity Impact | None | None |
| Vulnerable System Availability Impact | High | High |
| Subsequent System Confidentiality Impact | None | None |
| Subsequent System Integrity Impact | None | None |
| Subsequent System Availability Impact | None | None |
| CVSSv4 Version | 4.0 | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server 15 SP7 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server 16.0 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 16.1 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | rabbitmq-server | Affected |
| openSUSE Leap 16.0 | rabbitmq-server | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server 15 SP4 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP5 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | rabbitmq-server313 | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Enterprise Storage 7 | rabbitmq-server | Not affected |
| SUSE Enterprise Storage 7.1 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Real Time 15 SP4 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | rabbitmq-server | Not affected |
| SUSE Manager Proxy 4.1 | rabbitmq-server | Not affected |
| SUSE Manager Proxy 4.2 | rabbitmq-server | Not affected |
| SUSE Manager Proxy 4.3 | rabbitmq-server | Not affected |
| SUSE Manager Proxy LTS 4.3 | rabbitmq-server | Not affected |
| SUSE Manager Retail Branch Server 4.1 | rabbitmq-server | Not affected |
| SUSE Manager Retail Branch Server 4.2 | rabbitmq-server | Not affected |
| SUSE Manager Retail Branch Server 4.3 | rabbitmq-server | Not affected |
| SUSE Manager Retail Branch Server LTS 4.3 | rabbitmq-server | Not affected |
| SUSE Manager Server 4.1 | rabbitmq-server | Not affected |
| SUSE Manager Server 4.2 | rabbitmq-server | Not affected |
| SUSE Manager Server 4.3 | rabbitmq-server | Not affected |
| SUSE Manager Server LTS 4.3 | rabbitmq-server | Not affected |
| openSUSE Leap 15.3 | rabbitmq-server | Not affected |
| openSUSE Leap 15.4 | rabbitmq-server | Not affected |
| openSUSE Leap 15.5 | rabbitmq-server | Not affected |
| openSUSE Leap 15.6 | rabbitmq-server | Not affected |
| openSUSE Leap 15.6 | rabbitmq-server313 | Affected |
SUSE Timeline for this CVE
CVE page created: Thu Sep 24 12:41:38 2026CVE page last modified: Thu Sep 24 14:36:55 2026