Security Bulletin: IBM MQ Appliance is affected by multiple vulnerabilities

Summary IBM MQ Appliance has addressed multiple vulnerabilities in version 10.0.0.6. Vulnerability Details CVEID:CVE-2026-4046 DESCRIPTION: The iconv function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399...

curl: MQTT Protocol Packet Injection via Unchecked CONNACK Remaining Length

I'm not sure if this is a vulnerability or intended behavior, but I noticed that curl MQTT implementation accepts CONNACK packets with Remaining Length values greater than 2, which appears to violate the MQTT v3.1.1 specification. According to the MQTT spec, CONNACK packets should have a Remainin...

Improper header validation

Impact Improper header parsing. An attacker could sneak in a newline \n into both the header names and values. While the specification states that \r\n\r\n is used to terminate the header list, many servers in the wild will also accept \n\n. Patches The issue is patched in 1.9.1 and 2.4.5...

netty: control chars in header names may lead to HTTP request smuggling

A flaw was found in Netty, specifically in the netty-codec-http package. This flaw allows unauthorized control characters at the beginning and end of a request, does not follow the specification, and can cause HTTP request smuggling...