Out-of-bounds Read Affecting librabbitmq package, versions <0.11.0-1+deb12u2


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.31% (22nd percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBRABBITMQ-18388441
  • published29 Jul 2026
  • disclosed17 Sept 2026

Introduced: 29 Jul 2026

CVE-2026-44235  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade Echo:latest librabbitmq to version 0.11.0-1+deb12u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream librabbitmq package and not the librabbitmq package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to 0.16.0, a malicious AMQP server can send an undersized HEADER or METHOD frame during client login and cause unsigned size_t underflow in amqp_handle_input() in librabbitmq/amqp_connection.c. The parser subtracts HEADER_SIZE, fixed per-frame fields, and FOOTER_SIZE from state->target_size without first checking the minimum frame length. The wrapped encoded.len value is passed through amqp_decode_properties() to amqp_decode_table_internal(), where it defeats bounds checks and causes an out-of-bounds read and process crash. An on-path attacker can also trigger the issue when AMQP traffic is not protected by TLS with certificate validation. The demonstrated impact is denial of service, with no reliable memory disclosure or code execution shown. This issue is fixed in version 0.16.0.

CVSS Base Scores

version 3.1