CVE-2026-45770
Description
A flaw was found in Suricata, a network Intrusion Detection System. A specially crafted Lua rule that registers an excessive number of flow variables can corrupt the Lua detection state. This could allow an attacker to bypass Suricata's restricted Lua sandbox, potentially leading to unauthorized actions. Additionally, the excessive registration of flow variables may cause Suricata to crash, resulting in a denial of service.
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.
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
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
