CVE-2026-5259 in frostmourne
Summary
by MITRE • 04/01/2026
A vulnerability was determined in AutohomeCorp frostmourne up to 1.0. The affected element is an unknown function of the file frostmourne-monitor/src/main/java/com/autohome/frostmourne/monitor/controller/AlarmController.java of the component Alarm Preview. Executing a manipulation can lead to server-side request forgery. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.
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Analysis
by VulDB Data Team • 08/05/2026
The vulnerability identified in AutohomeCorp frostmourne version 1.0 represents a critical server-side request forgery flaw within the Alarm Preview component. This security weakness resides in the frostmourne-monitor/src/main/java/com/autohome/frostmourne/monitor/controller/AlarmController.java file where an unknown function processes incoming requests without adequate validation of user-supplied input parameters. The vulnerability allows remote attackers to manipulate the application's behavior by constructing malicious requests that can cause the server to make unintended outgoing connections to arbitrary destinations.
The technical nature of this flaw aligns with common server-side request forgery patterns where applications fail to properly validate or sanitize external inputs before using them in HTTP requests to other systems. This vulnerability specifically affects the alarm preview functionality, suggesting that when users attempt to view or process alarm notifications, the system may be tricked into making unauthorized connections to internal or external services. The attack vector is remotely exploitable, meaning malicious actors can trigger this vulnerability from outside the network without requiring physical access or prior authentication.
The operational impact of this vulnerability extends beyond simple data exfiltration as it could enable attackers to perform reconnaissance activities by probing internal network services that are typically not directly accessible from the internet. Security researchers have noted that when such vulnerabilities exist in monitoring and alerting systems, they can provide attackers with significant information about system architecture and potentially lead to further exploitation opportunities. The fact that this exploit has been publicly disclosed increases the risk profile significantly as threat actors can readily leverage existing proof-of-concept code.
According to CWE classification standards, this vulnerability would likely map to CWE-918 which specifically addresses server-side request forgery vulnerabilities where untrusted input is used to construct HTTP requests without proper validation. The ATT&CK framework categorizes this type of vulnerability under T1190 - Exploit Public-Facing Application and T1071.1 - Application Layer Protocol: Web Protocols, as it represents an attack against publicly accessible web applications that can be exploited to gain unauthorized access to network resources. Organizations should immediately implement mitigations including input validation, outbound traffic filtering, and proper parameter sanitization to prevent exploitation of this vulnerability.
The exposure of this vulnerability in a monitoring system like frostmourne creates particular concern as such tools often have elevated privileges and access to critical system information. Attackers could potentially leverage this flaw to gain visibility into internal network infrastructure, access sensitive monitoring data, or even redirect traffic through compromised systems to establish persistent access. The remediation approach should include comprehensive code reviews of the affected controller, implementation of strict input validation mechanisms, and deployment of network-level controls to prevent unauthorized outbound connections from the monitoring system.