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Full vulnerability report · 2026
CVE-2026-67230High confidence

RabbitMQ: Web-STOMP unbounded pre-auth accumulation

rabbitmq · rabbitmq-server

Official source article: GitHub GHSA-7V63-J4GM-P4RH ↗. Check the applicable product and release in the original source.

6.3MediumCVSS 4.0
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.47% for the current model date.

Compensating controls

  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs rabbitmq rabbitmq-server and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

5 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcerabbitmq-serverAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 8 Oct 2026
Debian bookwormbookworm · sourcerabbitmq-serverAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 8 Oct 2026
Debian forkyforky · sourcerabbitmq-serverVendor fix publishedDebian records a fixed source-package version for this release.4.3.0-2Debian Security Tracker ↗Source updated 8 Oct 2026
Debian sidsid · sourcerabbitmq-serverVendor fix publishedDebian records a fixed source-package version for this release.4.3.0-2Debian Security Tracker ↗Source updated 8 Oct 2026
Ubuntu 24.04 LTSnoble · standard archiverabbitmq-serverUnder evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical Ubuntu Security ↗Source updated 8 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-67230 · CSAF 2.0 · revision 2 · interimSUSE Product Security TeamCVE-2026-67230
118 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • erlang-rabbitmq-client as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • rabbitmq-server as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • rabbitmq-server as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • rabbitmq-server as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • rabbitmq-server as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise High Performance Computing 15 SP4
Summary
RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the Web STOMP WebSocket handler enforced neither max_frame_size nor login_timeout before authentication, allowing an unauthenticated client to keep a connection alive with a slow stream of small frames and accumulate unbounded pre-authentication state. The rabbitmq_web_stomp plugin must be enabled, and no authentication is required to reach the vulnerable path. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
Remediation
No remediation text is recorded.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-87144

No EUVD known-exploited evidence

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the Web STOMP WebSocket handler enforced neither max_frame_size nor login_timeout before authentication, allowing an unauthenticated client to keep a connection alive with a slow stream of small frames and accumulate unbounded pre-authentication state. The rabbitmq_web_stomp plugin must be enabled, and no authentication is required to reach the vulnerable path. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
6.3 · CVSS 4.0
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
01

What, why and how

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the Web STOMP WebSocket handler enforced neither max_frame_size nor login_timeout before authentication, allowing an unauthenticated client to keep a connection alive with a slow stream of small frames and accumulate unbounded pre-authentication state. The rabbitmq_web_stomp plugin must be enabled, and no authentication is required to reach the vulnerable path. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

What

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the Web STOMP WebSocket handler enforced neither max_frame_size nor login_timeout before authentication, allowing an unauthenticated client to keep a connection alive with a slow stream of small frames and accumulate unbounded pre-authentication state. The rabbitmq_web_stomp plugin must be enabled, and no authentication is required to reach the vulnerable path. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

Why

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the Web STOMP WebSocket handler enforced neither max_frame_size nor login_timeout before authentication, allowing an unauthenticated client to keep a connection alive with a slow stream of small frames and accumulate unbounded pre-authentication state. The rabbitmq_web_stomp plugin must be enabled, and no authentication is required to reach the vulnerable path. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

Why

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Allocation of Resources Without Limits or Throttling → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-770 ↗

CWE-770: Allocation of Resources Without Limits or Throttling. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Common Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.ATPresentAttack requirements: A particular deployment or execution condition must be present.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCNoneVulnerable-system confidentiality: No direct loss is represented by this metric.VINoneVulnerable-system integrity: No direct loss is represented by this metric.VALowVulnerable-system availability: A successful attack can cause a limited loss.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-770
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-87144Official EUVD mapping

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the Web STOMP WebSocket handler enforced neither max_frame_size nor login_timeout before authentication, allowing an unauthenticated client to keep a connection alive with a slow stream of small frames and accumulate unbounded pre-authentication state. The rabbitmq_web_stomp plugin must be enabled, and no authentication is required to reach the vulnerable path. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2268RabbitMQ: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in RabbitMQ ausnutzen, um beliebigen Programmcode auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • rabbitmq-server as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • rabbitmq-server as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise High Performance Computing 15 SP3
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • rabbitmq-server as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • rabbitmq-server as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise High Performance Computing 15 SP4
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • rabbitmq-server as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise High Performance Computing 15 SP5
  • rabbitmq-server as component of SUSE Linux Enterprise High Performance Computing 15 SP5
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise High Performance Computing 15 SP5
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise Module for Server Applications 15 SP7
  • erlang-rabbitmq-client313 as component of SUSE Linux Enterprise Module for Server Applications 15 SP7
  • rabbitmq-server as component of SUSE Linux Enterprise Module for Server Applications 15 SP7
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise Module for Server Applications 15 SP7
  • rabbitmq-server313 as component of SUSE Linux Enterprise Module for Server Applications 15 SP7
  • rabbitmq-server313-bash-completion as component of SUSE Linux Enterprise Module for Server Applications 15 SP7
  • rabbitmq-server313-plugins as component of SUSE Linux Enterprise Module for Server Applications 15 SP7
  • rabbitmq-server313-zsh-completion as component of SUSE Linux Enterprise Module for Server Applications 15 SP7
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise Server 15 SP2-LTSS
  • rabbitmq-server as component of SUSE Linux Enterprise Server 15 SP2-LTSS
  • rabbitmq-server-plugins as component of SUSE Linux Enterprise Server 15 SP2-LTSS
  • erlang-rabbitmq-client as component of SUSE Linux Enterprise Server 15 SP2
  • and 88 more
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 25 Sept 2026 · Last source change 29 Sept 2026, 19:22 UTC · CWE-770 · Allocation of Resources Without Limits or Throttling

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-26
European sourceENISA EUVD · EUVD-2026-87144
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD enrichment underway

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. ENISA EUVD mappingEUVD-2026-87144 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-87144"}
    ENISA EUVD ↗
  2. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2026-87144↗Vendor CSAF · SUSE Product Security Team↗CVE authority or vendor reference · GitHub GHSA-7V63-J4GM-P4RH↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-67230 · cve.blacktree.nl