CVE-2026-106972
Description
A flaw was found in rybakit/msgpack. An attacker can cause a Denial of Service (DoS) by supplying specially crafted input to the data unpacking component. Due to uncontrolled recursion, processing this malicious input leads to excessive resource exhaustion and crashes the application.
Statement
This vulnerability is rated as Important because an unauthenticated remote attacker can cause an application crash and memory exhaustion without requiring elevated privileges or user interaction. In Red Hat environments, rybakit/msgpack is not provided as part of standard operating system installations, restricting exposure to custom deployments that accept and unpack untrusted serialized streams.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
When allocating resources without limits, an attacker could prevent other systems, applications, or processes from accessing the same type of resource. It can be easy for an attacker to consume many resources by rapidly making many requests or causing larger resources to be used than is needed.
Frequently Asked Questions
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