CVE-2026-57224
Description
A flaw was found in Suricata. The DHCP and RDP parsers fail to record packet direction for stateless transactions. This allows a network sensor observing only one direction of traffic to accumulate an unbounded list of per-flow transactions. Consequently, this leads to increasing CPU and memory consumption, eventually resulting in a Denial of Service (DoS) for the Suricata engine.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (Other); DoS: Resource Consumption (Memory); DoS: Resource Consumption (CPU)
An attacker that can influence the allocation of resources that are not properly released could deplete the available resource pool and prevent all other processes from accessing the same type of resource. Frequently-affected resources include memory, CPU, disk space, power or battery, etc.
Frequently Asked Questions
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