6.5

CVE-2026-67413: broadcom rabbitmq_server

CVSS: 6.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-67413DEBIAN-CVE-2026-67413
Published 25-09-2026Last modified 29-09-2026
Open JSON

Vulnerability summary

CVE-2026-67413 is a medium (CVSS 6.5) vulnerability in broadcom rabbitmq_server. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 34.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.42%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2026:67552

Timeline

  1. 25-09-2026
    PublishedVulnerability first disclosed.
  2. 29-09-2026
    Last modifiedVulnerability information updated.

Description

RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.23, 4.1.14, 4.2.9, and 4.3.3, the optional rabbitmq_jms_topic_exchange plugin's x-jms-topic exchange accepted a client-controlled rjms_erlang_selector binding expression whose LIKE evaluator expanded percent and underscore wildcards into overlapping PCRE fragments. It executed those fragments with raw re:run/3 without match or recursion limits, allowing an authenticated tenant that can bind and publish to consume broker scheduler CPU and deny service with pathological selectors. This issue is fixed in versions 4.0.23, 4.1.14, 4.2.9, and 4.3.3.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.42%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

26-09-202619-10-2026
EPSS score
0.42%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Rabbitmq Server

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Broadcom1 product
  • rabbitmq_server≥ 4.0.0, < 4.0.23 | ≥ 4.1.0, < 4.1.14 | ≥ 4.2.0, < 4.2.9 | ≥ 4.3.0, < 4.3.3
Debian1 product
  • rabbitmq-serverAll versions (No fix recorded) | < 4.3.6-1
Rabbitmq1 product
  • rabbitmq-server≥ 4.2.0, < 4.2.9 | ≥ 4.1.0, < 4.1.14 | ≥ 4.3.0, < 4.3.3 | ≥ 4.0.0, < 4.0.23
Ubuntu1 product
  • rabbitmq-serverAll versions (No fix recorded)

4 vendors · 4 products

References

10 links