Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

It was discovered that rabbitmq-c did not correctly compute AMQP frame
lengths, leading to a size_t underflow. A remote attacker could possibly
use this to cause rabbitmq-c to crash, resulting in a denial of service, or
possibly expose sensitive information. This issue only affected Ubuntu
14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.
(CVE-2026-44235)

It was discovered that rabbitmq-c did not properly validate the frame size
during the AMQP login handshake. A remote attacker could possibly use this
to cause a heap buffer overflow, resulting in a denial of service or
possibly the execution of arbitrary code. This issue only affected Ubuntu
14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.
(CVE-2026-44236)

It was discovered that rabbitmq-c did not correctly validate the length of
decoded bytes fields, leading to an integer overflow in a bounds check on
32-bit systems. A remote attacker controlling a broker, or able to
intercept an unencrypted connection, could possibly use this to cause an
out-of-bounds read, resulting in a denial of service or the exposure of
sensitive information. (CVE-2026-59986)

It was discovered that rabbitmq-c did not validate the body fragment length
when serialising an AMQP body frame with the amqp_send_frame() API. An
attacker could possibly use this to cause a heap buffer overflow, resulting
in a denial of service (application crash) or possibly the execution of
arbitrary code. This issue did not affect Ubuntu 14.04 LTS.
(CVE-2026-61547)