CVE-2026-18973 in super-agent-party
Summary
by MITRE • 08/06/2026
A vulnerability has been found in heshengtao super-agent-party up to 0.4.1. The impacted element is the function sanitize_proxy_url of the file server.py of the component extension_proxy Route. The manipulation of the argument url leads to server-side request forgery. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 08/06/2026
This vulnerability resides within the heshengtao super-agent-party software version 0.4.1 and specifically targets the sanitize_proxy_url function located in the server.py file of the extension_proxy Route component. The flaw represents a classic server-side request forgery vulnerability that allows attackers to manipulate the url argument parameter, potentially enabling unauthorized access to internal systems or services that should remain protected from external exposure. The vulnerability's classification aligns with CWE-918 which specifically addresses server-side request forgery conditions where an attacker can coerce the server into making requests to arbitrary destinations.
The technical exploitation of this vulnerability occurs through remote manipulation of the url argument parameter within the sanitize_proxy_url function, which fails to properly validate or sanitize incoming proxy URL requests. This allows attackers to construct malicious URLs that bypass normal access controls and potentially gain access to internal network resources, sensitive data, or other systems that should be isolated from direct external access. The vulnerability's impact extends beyond simple data exposure as it can enable further attacks such as internal network reconnaissance, lateral movement, or even privilege escalation depending on the underlying infrastructure and access controls in place.
The operational implications of this vulnerability are significant for organizations using affected versions of the super-agent-party software, particularly those operating in environments where proxy services handle sensitive traffic or access to internal systems. The public disclosure of the exploit means that threat actors can immediately leverage this weakness without requiring advanced technical skills or zero-day knowledge. This creates an urgent risk assessment requirement for affected parties who must evaluate their exposure and implement immediate protective measures.
Organizations should prioritize immediate remediation through patching or updating to versions that address this vulnerability, while also implementing network segmentation and access controls to limit the potential impact of successful exploitation attempts. The lack of vendor response to early disclosure notifications creates additional risk as there may be no official patches or mitigations available, potentially forcing organizations to implement custom workarounds or alternative security measures.
Security teams should monitor for exploitation attempts through network traffic analysis and log reviews, particularly focusing on unusual proxy request patterns that might indicate attempts to leverage this vulnerability. The ATT&CK framework's T1071.004 technique for application layer protocol tunneling could be relevant in identifying malicious proxy usage patterns, while the T1566.001 technique for phishing with a fake proxy server may also apply if attackers attempt to redirect legitimate traffic through compromised proxy endpoints. Organizations should implement robust input validation controls and consider adopting security frameworks such as OWASP Top Ten protections for web applications to prevent similar vulnerabilities in future development cycles.
The vulnerability demonstrates the critical importance of proper parameter validation in proxy and routing components, where insecure handling of user-provided URLs can result in significant security breaches. This incident underscores the need for comprehensive security testing including dynamic application security testing and static code analysis to identify similar issues before they can be exploited by malicious actors in the wild.