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CVE-2026-57217: broadcom rabbitmq_server Incorrect Authorization

CVSS: 7.0v4.0HighAnalyzed
AliasesUBUNTU-CVE-2026-57217DEBIAN-CVE-2026-57217CGA-2p3r-43px-vmm4
Published 10-07-2026Last modified 13-07-2026
Open JSON

Vulnerability summary

CVE-2026-57217 is a high (CVSS 7.0) Incorrect Authorization vulnerability in broadcom rabbitmq_server. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 27.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
38/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.0/10
010
High · v4.0 (CVE.org)
EPSS score
0.35%
0%100%
Low · -0.21 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 5 · Related 3
OPENSUSE-SU-2026:21903-1RHSA-2026:35939RHSA-2026:35940SUSE-SU-2026:23859-1SUSE-SU-2026:23869-1

Timeline

  1. 10-07-2026
    PublishedVulnerability first disclosed.
  2. 13-07-2026
    Last modifiedVulnerability information updated.

Description

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.21, 4.1.11, and 4.2.6, RabbitMQ topic authorization can allow restricted topic writes and binds during metadata-store failures because topic-permission lookup errors from Khepri can collapse to undefined, which the internal backend treats as allow. This issue is fixed in versions 3.13.15, 4.0.21, 4.1.11, and 4.2.6.

CVSS metrics

8 scores · 6 sources · 2 versions

EPSS trend

Probability

0.35%

Chance of exploitation in the next 30 days

Percentile

27%

Versus all other CVEs

30-day change

-0.21 pp

From 0.56% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.35%

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

Chainguard6 products
  • rabbitmq-server-4.1All versions (No fix recorded)
  • rabbitmq-server-4.1-docAll versions (No fix recorded)
  • rabbitmq-server-4.1-iamguarded-compatAll versions (No fix recorded)
  • rabbitmq-server-fips-4.1All versions (No fix recorded)
  • rabbitmq-server-fips-4.1-docAll versions (No fix recorded)
Broadcom1 product
Debian1 product
  • rabbitmq-serverAll versions (No fix recorded) | < 4.3.0-2
Rabbitmq1 product
  • rabbitmq-server≥ 4.2.0, < 4.2.6 | ≥ 4.1.0, < 4.1.11 | ≥ 4.0.0, < 4.0.21 | ≥ 3.13.0, < 3.13.15
Ubuntu1 product
  • rabbitmq-serverAll versions (No fix recorded)
Wolfi1 product
  • rabbitmq-server-4.1All versions (No fix recorded)

6 vendors · 11 products

References

11 links
Show all 11 references