CVE-2026-118577 in MusicFreeDesktop
Summary
by MITRE • 10/28/2026
A vulnerability was identified in maotoumao MusicFreeDesktop 0.0.6/0.0.7/0.0.8. Impacted is an unknown function of the component Request Forwarder. The manipulation leads to server-side request forgery. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The identifier of the patch is b0d3876247a0a64fa0e430e4b21870e41f503182. It is recommended to apply a patch to fix this issue.
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Analysis
by VulDB Data Team • 10/28/2026
The vulnerability identified in maotoumao MusicFreeDesktop versions 0.0.6 through 0.0.8 represents a critical security flaw within the application's Request Forwarder component, specifically affecting an unknown internal function responsible for handling network requests. This architectural weakness allows attackers to manipulate how the client processes URLs or request parameters, leading directly to Server-Side Request Forgery attacks. In this context, the desktop application acts as a proxy for malicious actors by leveraging its own authenticated session and network privileges to initiate HTTP requests on their behalf. Because the vulnerability resides in a component that likely handles user-provided input without sufficient validation or sanitization of destination hosts, it enables an attacker to redirect internal traffic toward unintended targets. This class of flaw is particularly dangerous because desktop applications often have broader access to local system resources and network configurations than web browsers do due to fewer built-in security restrictions like the Same-Origin Policy.
From a technical perspective, this vulnerability aligns with CWE-918, which defines Server-Side Request Forgery as a condition where a server retrieves data from a URL provided by an untrusted user without validating that request. The operational impact of such a flaw is severe, as it allows for remote exploitation without requiring physical access to the victim's machine or complex social engineering beyond initial interaction with the vulnerable application version. An attacker can craft specific payloads that trick the MusicFreeDesktop client into sending requests to internal network services, cloud metadata endpoints, or other sensitive infrastructure components that are not directly exposed to the public internet. This capability effectively bypasses firewall rules and access control lists designed to protect internal assets from external threats, turning a consumer media application into an attack vector for lateral movement within private networks.
The presence of publicly available exploits significantly elevates the risk profile associated with this vulnerability. When exploit code is disseminated in public repositories or forums, it lowers the barrier to entry for less sophisticated threat actors who may not possess deep knowledge of network protocol manipulation but can still leverage existing tools to compromise systems running affected versions. The exploitation likely involves injecting malicious URLs into fields that trigger the Request Forwarder logic, causing the application to fetch content from attacker-controlled servers or internal services. This can lead to data exfiltration if sensitive information is returned in the response headers or body, which the attacker's server then captures. Furthermore, SSRF vulnerabilities are frequently chained with other attacks such as cross-site request forgery or authentication bypasses, amplifying their potential damage beyond simple network reconnaissance.
Industry standards and frameworks provide clear guidance on categorizing and mitigating this type of flaw. The MITRE ATT&CK framework classifies Server-Side Request Forgery under the Discovery tactic, specifically within techniques that involve gathering information about internal networks through proxying requests. Addressing CWE-918 requires a multi-layered defense strategy. First, developers must implement strict allow-lists for permitted outbound connections rather than relying on block-lists or unrestricted access. Second, input validation should be enforced at the entry points of the Request Forwarder to ensure that only expected domains and protocols are processed. Additionally, implementing network-level controls such as egress filtering can prevent the application from reaching internal IP ranges even if the software logic is flawed.
To remediate this issue immediately, users must apply the patch identified by commit hash b0d3876247a0a64fa0e430e4b21870e41f503182 to their installations of maotoumao MusicFreeDesktop. This update likely contains code changes that restrict the Request Forwarder's capabilities or add necessary validation checks to prevent unauthorized redirections. Organizations and individual users should verify they are running a version newer than 0.0.8, as earlier versions remain fully susceptible to remote exploitation. Regular monitoring of application logs for unusual outbound connection patterns can also serve as an early warning system if any residual risk remains after patching. Maintaining up-to-date software is the most effective defense against known vulnerabilities that have already been weaponized in the wild.