CVE-2026-59986

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Source
https://cve.org/CVERecord?id=CVE-2026-59986
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59986.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-59986
Aliases
  • GHSA-jgjf-7fwf-f3c7
Downstream
Published
2026-11-10T16:21:03Z
Modified
2026-11-11T02:49:04Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
rabbitmq-c: amqp_decode_bytes size_t integer overflow bypasses bounds check on 32-bit (OOB read)
Details

rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to version 0.17.0, the bounds check (*offset = o + len) <= encoded.len overflows when o + len > SIZE_MAX on 32-bit systems. len is a uint32_t read from the AMQP wire as a BYTES/UTF8 field length. The overflow wraps the check to a small value that passes, producing a decoded amqp_bytes_t with a multi-GB .len pointing into a small frame buffer. This results in an out-of-bounds read of up to ~4GB of process memory on 32-bit systems (ARM, MIPS, x86 ILP32, embedded IoT AMQP clients). Enabling information disclosure or denial of service. Not exploitable on 64-bit systems where size_t is 64-bit. This issue has been patched in version 0.17.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-125",
        "CWE-190"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59986.json"
}
References

Affected packages

Git / github.com/alanxz/rabbitmq-c

Affected ranges

Type
GIT
Repo
https://github.com/alanxz/rabbitmq-c
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
59df173fff72857896a8257bbfb72d9d29175f1e
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.17.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "original_tag": "v0.17.0",
            "range": [
                {
                    "fixed": "59df173fff72857896a8257bbfb72d9d29175f1e"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*
0.2
librabbitmq-0.*
librabbitmq-0.1-amqp_0_8
rabbitmq-c-v0.*
rabbitmq-c-v0.3.0
v0.*
v0.1
v0.10.0
v0.11.0
v0.12.0
v0.13.0
v0.14.0
v0.15.0
v0.16.0
v0.2
v0.3.0
v0.4.0
v0.4.0-test
v0.5.0
v0.5.1
v0.5.2
v0.6.0
v0.7.0
v0.7.1
v0.8.0
v0.9.0-master

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59986.json"