CVE-2026-67416

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Source
https://cve.org/CVERecord?id=CVE-2026-67416
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67416.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-67416
Aliases
  • GHSA-p35w-6mx2-q4pc
Downstream
Published
2026-10-14T16:00:32Z
Modified
2026-10-15T02:47:41Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
RabbitMQ: AMQP 1.0 symbolic body descriptor prefix collisions bypass validation
Details

RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.24, 4.1.15, 4.2.10, and 4.3.4, the optimized AMQP 1.0 server_mode parser in deps/amqp10_common/src/amqp10_binary_parser.erl matches the textual prefixes of symbolic data, sequence, and value body descriptors without verifying their encoded symbol lengths. An authenticated AMQP 1.0 publisher with write permission can submit a well-formed unknown descriptor that begins with a registered body descriptor, and RabbitMQ misclassifies and stores the bytes as a standard body section. Strict AMQP 1.0 consumers can terminate while decoding the stored entry. For bodies misclassified as data, AMQP 0-9-1 or other cross-protocol conversion performs full body decoding and can terminate the consumer protocol process, with acknowledgement-required delivery permitting repeated failures. Sequence and value classifications are normally transported as opaque encoded payloads on that conversion path. The broker remains alive, and the issue does not bypass routing or authorization. This issue is fixed in versions 4.0.24, 4.1.15, 4.2.10, and 4.3.4.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-20",
        "CWE-248",
        "CWE-754"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67416.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "4.0.0"
                },
                {
                    "fixed":  "4.0.24"
                },
                {
                    "introduced":  "4.1.0"
                },
                {
                    "fixed":  "4.1.15"
                },
                {
                    "introduced":  "4.2.0"
                },
                {
                    "fixed":  "4.2.10"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/rabbitmq/rabbitmq-server

Affected ranges

Type
GIT
Repo
https://github.com/rabbitmq/rabbitmq-server
Events
Introduced
1929eeadf9b2bac12c5434fb56884ef27370580e
Fixed
d5186e66e056960f58e2d0fbee2fcc66e1ed6fb9
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "4.3.0"
        },
        {
            "fixed":  "4.3.4"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v4.*
v4.3.0
v4.3.1
v4.3.2
v4.3.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67416.json"