CVE-2026-67415

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Source
https://cve.org/CVERecord?id=CVE-2026-67415
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67415.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-67415
Aliases
  • GHSA-8mpg-qw9r-m5cr
Downstream
Published
2026-09-25T16:21:04Z
Modified
2026-09-26T11:30:14Z
Severity
  • 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
RabbitMQ: Shovel Management Atom Exhaustion Allows Persistent Broker-Wide Denial of Service
Details

RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, the Shovel parameter parser converted attacker-controlled runtime parameter values into non-garbage-collected Erlang atoms before bounding them or checking a fixed allowlist. Exploitation requires network access to the Management HTTP API, valid credentials with both the management and policymaker tags, permission to set Shovel runtime parameters on a vhost, and the rabbitmq_shovel and rabbitmq_shovel_management plugins to be enabled. The attacker can exhaust the node-wide atom table and deny service, and malicious parameters are stored durably and reparsed when workers start, so atom pressure can recur after restart without a live attacker connection. This issue is fixed in versions 4.2.9 and 4.3.3.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-400"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67415.json"
}
References

Affected packages

Git / github.com/rabbitmq/rabbitmq-server

Affected ranges

Type
GIT
Repo
https://github.com/rabbitmq/rabbitmq-server
Events
Introduced
1929eeadf9b2bac12c5434fb56884ef27370580e
Fixed
1d284b2d2a1e2f845ad22b0d5ee38ec372d50802
Introduced
95c501fbad76c66156346cf364d158d6e30aa4d9
Fixed
47d6d6457c7d1a440daed643cb7d76bba313e79c
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "4.3.0"
        },
        {
            "fixed":  "4.3.3"
        },
        {
            "introduced":  "4.2.0"
        },
        {
            "fixed":  "4.2.9"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v4.*
v4.2.0
v4.2.1
v4.2.2
v4.2.3
v4.2.4
v4.2.5
v4.2.6
v4.2.7
v4.2.8
v4.3.0
v4.3.1
v4.3.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67415.json"