Upstream information
Description
RabbitMQ is a messaging and streaming broker. Prior to versions 4.2.7 and 4.3.1, pattern_to_regex maps % -> .*? and _ -> ., then compiles ^...$ with only [unicode]; re:run is called with only [{capture, none}] - no explicit match_limit. A pattern like %_%_..._%X becomes ^.*?..*?.....*?.X$ with overlapping lazy quantifiers. The whole-expression cap is ?MAX_EXPRESSION_LENGTH=4096 chars / ?MAX_TOKENS=200; a LIKE string literal is one token, so ~2000 %_ pairs fit. SQL filters are accepted unconditionally at rabbit_amqp_session.erl:3264 (no feature flag). Evaluated per-message at rabbit_stream_queue.erl:1439. OTP's default 10M match_limit caps each match at ~100-200 ms (not seconds), and the re NIF yields to the scheduler. An authenticated AMQP 1.0 consumer with read+write on a stream queue can cause ~100-200 ms of CPU per delivered message via a crafted LIKE filter, multiplied across thousands of messages and parallel sessions - a substantial backtracking-driven CPU amplification. Preconditions include AMQP 1.0 with stream queues in use Attacker can attach a receiver with a filter (read permission) and publish messages with long property values (write permission). This issue is fixed in versions 4.2.7 and 4.3.1.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having low severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 3.1 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Low |
| CVSSv3 Version | 3.1 |
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 2.3 | 2.3 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/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:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Attack Requirements | Present | Present |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Vulnerable System Confidentiality Impact | None | None |
| Vulnerable System Integrity Impact | None | None |
| Vulnerable System Availability Impact | Low | Low |
| 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 | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | rabbitmq-server313 | Not affected |
| SUSE Linux Enterprise Server 16.0 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 16.1 | rabbitmq-server | Not 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 | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | rabbitmq-server | Not affected |
| openSUSE Leap 16.0 | rabbitmq-server | Not 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 | Not 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 | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | rabbitmq-server | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | rabbitmq-server313 | Not 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 | Not 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 | Not affected |
SUSE Timeline for this CVE
CVE page created: Thu Sep 24 16:46:08 2026CVE page last modified: Fri Sep 25 17:45:25 2026