CVE-2026-116070 in Docker-Proxy
Summary
by MITRE • 10/25/2026
Docker-Proxy through 5.1.9 contains a missing authentication vulnerability in the hubcmdui routes/config.js that allows unauthenticated attackers to read and overwrite configuration via /api/config. Attackers can retrieve the WeChat webhook URL and Telegram bot token, and overwrite menuItems links, proxyDomain, and the monitoring webhook destination receiving alerts.
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Analysis
by VulDB Data Team • 10/25/2026
The vulnerability identified in Docker-Proxy versions through 5.1.9 represents a critical failure in access control mechanisms within the application's web interface. Specifically, the flaw resides in the hubcmdui routes/config.js module, which exposes an API endpoint at /api/config without enforcing proper authentication checks. This architectural oversight allows unauthenticated actors to interact directly with sensitive configuration endpoints that should be restricted to authorized administrators only. The absence of session validation or token verification on this route effectively bypasses any intended security boundaries, granting external parties the ability to read and modify critical system settings remotely over HTTP.
From a technical perspective, the exploitation vector involves sending crafted HTTP requests to the /api/config endpoint without providing valid credentials. Because the server does not verify the identity of the requester before processing these commands, an attacker can perform both GET and PUT operations on this resource. The ability to read configuration data exposes sensitive integration details such as WeChat webhook URLs and Telegram bot tokens. These secrets are typically used for automated notifications or command-and-control communications within organizational workflows. Their exposure compromises the confidentiality of communication channels and may allow attackers to intercept alerts, impersonate legitimate notification sources, or gather intelligence about the target's infrastructure monitoring setup.
The write capability associated with this vulnerability poses an even more severe risk by enabling configuration tampering. Attackers can overwrite menuItems links, proxyDomain settings, and the destination for monitoring webhooks that receive system alerts. Modifying menu items could redirect users to malicious phishing sites or unauthorized resources when they interact with the application's navigation interface. Altering the proxy domain might facilitate man-in-the-middle attacks by directing traffic through attacker-controlled servers. Most critically, changing the webhook destination allows an adversary to divert security alerts away from legitimate monitoring systems and toward a server under their control. This not only blinds administrators to ongoing incidents but also provides the attacker with real-time visibility into system events, potentially aiding in further exploitation or lateral movement within the network.
This vulnerability aligns closely with CWE-287, which describes Improper Authentication, as well as CWE-601, URL Redirection to Untrusted Site, given the potential for menu item manipulation. In terms of offensive security frameworks, this behavior maps to ATT&CK technique T1539, Steal Web Session Cookie, if session tokens are exposed via configuration files, and more broadly to T1486, Data Encrypted for Impact or T1078, Valid Accounts, depending on how the stolen credentials are utilized. The ability to modify webhook destinations also relates to ATT&CK technique T1529, System Shutdown/Reboot if used to disrupt services, though primarily it serves reconnaissance and persistence purposes by ensuring alerts do not trigger defensive responses.
The operational impact of this vulnerability is significant for any organization relying on Docker-Proxy for container management or proxying services. Unauthorized access to configuration data can lead to a complete compromise of the integrity and availability of the service. By stealing webhook tokens, attackers gain persistent access to notification systems which may be linked to other security tools like SIEMs or incident response platforms. This could allow them to suppress alerts during an active intrusion or inject false positives to cause alert fatigue among security teams. Furthermore, redirecting proxy domains can disrupt business continuity by making services unavailable or routing traffic through malicious intermediaries for data exfiltration purposes.
Mitigation strategies must prioritize immediate remediation of the authentication gap in the hubcmdui routes/config.js module. The primary fix involves implementing strict access control checks that verify valid user sessions or administrative privileges before allowing any read or write operations on configuration endpoints. Developers should ensure that all API routes handling sensitive data enforce multi-factor authentication where applicable and utilize secure session management practices. Additionally, input validation and sanitization should be applied to prevent injection attacks when modifying configuration values like URLs or domains.
Beyond code-level fixes, organizations should audit their current deployments of Docker-Proxy for signs of exploitation, such as unexpected changes in webhook destinations or unusual outbound traffic patterns associated with the stolen tokens. It is advisable to rotate all exposed secrets immediately, including WeChat webhook URLs and Telegram bot tokens, assuming they have been compromised due to the public nature of this vulnerability disclosure. Network segmentation should also be reviewed to ensure that management interfaces are not directly accessible from untrusted networks without additional protective measures like Web Application Firewalls or reverse proxy authentication layers. Regular security assessments and penetration testing can help identify similar misconfigurations in other components before they are exploited by malicious actors seeking to gain unauthorized access to critical infrastructure configurations.