CVE-2026-59986
HIGH
MEDIUM
Priority: 0.04
BB Relevance:
65/100
Published: 2026-11-10
Modified: 2026-11-10
First seen: 2026-11-10
Status: active
Attack Surface
Network
No Auth
No Interaction
Conf. Impact
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
None
S:
Unchanged
C:
High
I:
None
A:
High
Description
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.
Weakness Classification (2)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| alanxz | rabbitmq-c | < 0.17.0 |
| alanxz | rabbitmq-c | < 0.17.0 |
References & Advisories (3)
x_refsource_MISC
x_refsource_MISC
x_refsource_CONFIRM