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Debian LTS DLA-4658-1 librabbitmq Important Heap Buffer Overflow

debian lts
Calendar Grey June 30, 2026
Dist Debian Esm H88
Explore the critical update for librabbitmq addressing heap buffer overflow issues on the Debian LTS platform.
Two issues were discovered in librabbitmq, a C-language client library used to communicate with RabbitMQ servers using the Advanced Message Queuing Protocol (AMQP)
Topics%20covered

Topics Covered

security advisory important heap buffer overflow librabbitmq AMQP deblts

Summary

CVE-2026-44235

A size_t underflow in AMQP frame length computation could have
led to an out-of-bounds read.

CVE-2026-44236

A heap buffer overflow in AMQP login handshake via undersized
connection.tune.frame_max.

For Debian 11 bullseye, these problems have been fixed in version
0.10.0-1+deb11u2.

For Debian 12 bookworm, these problems have been fixed in version
0.11.0-1+deb12u2.

We recommend that you upgrade your librabbitmq packages.

For the detailed security status of librabbitmq please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/librabbitmq

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS



Severity
important
Lowest
Low
Medium
High
Critical

Package: librabbitmq
Version: 0.10.0-1+deb11u2 0.11.0-1+deb12u2
CVE ID: CVE-2026-44235 CVE-2026-44236

Topics%20covered

Topics Covered

security advisory important heap buffer overflow librabbitmq AMQP deblts

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