CVE-2026-57216

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Source
https://cve.org/CVERecord?id=CVE-2026-57216
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-57216.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-57216
Aliases
  • GHSA-36m6-588r-vqcw
Downstream
AZL (1)
CGA (12)
DEBIAN (1)
OESA (5)
openSUSE (1)
RHSA (2)
SUSE (2)
UBUNTU (1)
Related
openSUSE (1)
SUSE (2)
Published
2026-07-10T20:20:33Z
Modified
2026-10-22T10:34:32Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
RabbitMQ: AMQP 1.0, AMQP 0-9-1, Stream Protocol loopback enforcement can lead to remote guest sessions due to listener-address loopback checks
Details

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, AMQP 0-9-1, AMQP 1.0, and Stream Protocol authentication can allow a loopback-restricted user such as guest to connect remotely when traffic is accepted through a trusted PROXY-protocol path and the backend listener is loopback-bound because the loopback check uses the listener-side socket address instead of the real client source. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57216.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "4.1.0"
                        },
                        {
                            "fixed": "4.1.11"
                        },
                        {
                            "introduced": "4.0.0"
                        },
                        {
                            "fixed": "4.0.21"
                        },
                        {
                            "introduced": "3.13.0"
                        },
                        {
                            "fixed": "3.13.15"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/rabbitmq/rabbitmq-server

Affected ranges

Type
GIT
Repo
https://github.com/rabbitmq/rabbitmq-server
Events
Introduced
95c501fbad76c66156346cf364d158d6e30aa4d9
Fixed
8a56c37f099a7bf609a555de3f0ff8ed23964d20
Fixed
7273c9eb6920abcde17b892dbe97ccaf906ead47
Fixed
9f8c39fcf0acbc43080ee7017a62a02832114112
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "4.2.0"
                },
                {
                    "fixed": "4.2.6"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "7273c9eb6920abcde17b892dbe97ccaf906ead47"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "9f8c39fcf0acbc43080ee7017a62a02832114112"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v4.2.6",
            "range": [
                {
                    "fixed": "8a56c37f099a7bf609a555de3f0ff8ed23964d20"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

v4.*
v4.2.0
v4.2.1
v4.2.2
v4.2.3
v4.2.4
v4.2.5

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-57216.json"