CVE-2026-115274
Description
A flaw was found in Elixir. This vulnerability allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by exhausting system resources. The standard library's JSON parsing module fails to restrict the length of integer numbers during data decoding. By submitting a specially crafted JSON payload containing excessively long numbers, an attacker can monopolize processor time and memory, leading to severe performance degradation or application crashes.
Statement
This vulnerability is rated as Moderate severity because an unauthenticated remote attacker can cause resource exhaustion and service disruption, but cannot compromise confidentiality, modify data, or execute arbitrary code. Red Hat Enterprise Linux and other core Red Hat product offerings do not ship or maintain the Elixir runtime, significantly limiting enterprise exposure. Impact is primarily restricted to custom-developed applications consuming untrusted JSON payloads through standard decoding functions without application-level length constraints.
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.
