SB2026100503 - Red Hat Enterprise Linux 8 update for librabbitmq

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Main Vulnerability Database SB2026100503

SB2026100503 - Red Hat Enterprise Linux 8 update for librabbitmq

Published: October 5, 2026

Security Bulletin ID SB2026100503
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Heap-based buffer overflow (CVE-ID: CVE-2026-44236)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a heap-based buffer overflow in amqp_login_inner() and the outbound frame buffer handling when processing a server-supplied connection.tune frame during the amqp_login() handshake. A remote attacker can send a connection.tune frame with an undersized frame_max value to cause a denial of service.

User interaction is required for a victim application to connect to the malicious AMQP server.


Remediation

Install update from vendor's website.

References