Do Son 
The Apache Software Foundation has issued a security advisory for HertzBeat, its AI-powered real-time observability platform, warning of a vulnerability that could allow attackers to overwhelm the system using malicious data queries. Tracked as CVE-2026-24343, the flaw is rated as “Important” and affects specific versions of the hertzbeat-collector component.
HertzBeat is designed to be a high-performance, agentless monitoring system that unifies metrics and logs. However, an oversight in how it processes XML-like data has left it vulnerable to a classic XPath Injection attack.
The vulnerability is described as “Improper Neutralization of Data within XPath Expressions”.
In simple terms, XPath is a language used to navigate through elements and attributes in an XML document. When an application takes user input and uses it to build an XPath query without proper sanitization, an attacker can manipulate that query.
In this specific case, the flaw leads to “Uncontrolled Resource Consumption”. By crafting a complex or malicious XPath expression, an attacker can force the HertzBeat collector to burn through excessive CPU or memory, potentially causing the service to slow down or crash entirely—a denial-of-service (DoS) condition.
The vulnerability affects Apache HertzBeat (hertzbeat-collector) versions 1.7.1 through 1.7.9 (specifically “1.7.1 before 1.8.0”).
Users running earlier versions or the latest release are not impacted by this specific issue.
The maintainers have addressed the flaw in version 1.8.0. Administrators using HertzBeat to monitor their infrastructure are strongly recommended to upgrade to this version immediately.
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