9Router

An unauthenticated SSRF vulnerability in the 9Router /api/auth/oidc/test endpoint allows remote attackers to perform internal network scanning and data exfiltration via the issuerUrl parameter.

9Router versions prior to 0.4.72 contain a server-side request forgery (SSRF) vulnerability in the /v1/web/fetch endpoint, allowing an authenticated or locally-connected user to bypass URL validation to fetch arbitrary internal URLs, potentially exposing cloud metadata credentials, accessing internal services, and bypassing authentication on localhost endpoints.

A critical vulnerability chain, CVE-2026-63732, in 9router version 0.4.59 allows a remote, unauthenticated attacker to achieve arbitrary code execution on the host operating system by leveraging a hardcoded default password for initial access, bypassing a local-only network restriction via Host header spoofing, and exploiting unvalidated arguments during MCP plugin registration to execute malicious code when a plugin's SSE endpoint is triggered.

A critical unauthenticated access vulnerability, CVE-2026-59801, in 9Router versions up to 0.4.41 allows remote attackers to bypass authentication on provider management API endpoints, enabling them to enumerate, create, modify, or delete connections, leading to credential exposure, AI traffic redirection, or complete denial of service.

An unauthenticated information disclosure vulnerability in 9Router through version 0.4.41 allows remote attackers to access sensitive user data by querying unprotected API endpoints like `/request-logs` and `/request-details` to enumerate paginated request logs and retrieve complete AI conversation histories, including system prompts, user messages, assistant responses, tool calls, and user email addresses, due to a lack of authentication middleware.

An unauthenticated information disclosure vulnerability, CVE-2026-62327, in 9Router through version 0.4.41 allows remote attackers to retrieve plaintext AI provider API keys via a missing authentication middleware on the Next.js API route accessible at /api/usage/stats, enabling unauthorized access to sensitive data, potential billing fraud, and quota exhaustion.

A critical OS command injection vulnerability (CVE-2026-59800) affects 9Router versions prior to 0.4.44, allowing unauthenticated remote attackers to execute arbitrary OS commands as root via a crafted POST request to the /api/tunnel/tailscale-install endpoint, leading to full system compromise with active exploitation observed.

The 9router dashboard login rate limiter incorrectly uses the attacker-controlled X-Forwarded-For HTTP header to identify clients, leading to a brute-force protection bypass (CVE-2026-55501) that allows attackers to circumvent the lockout mechanism and conduct unlimited password brute-force attempts to gain administrative access.

Multiple critical unauthenticated API vulnerabilities in 9Router versions up to 0.4.41 allow an attacker to perform full CRUD operations on provider connections, leak plaintext API keys, and access sensitive conversation history, posing risks of data exfiltration and denial of service.

9router versions 0.4.30 to 0.4.33 are vulnerable to unauthenticated remote code execution, allowing network-adjacent attackers to execute arbitrary OS commands by registering and triggering malicious plugins through unprotected API endpoints.