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    2 vulnerabilities by F1bonacc1

    CVE-2026-77339 (GCVE-0-2026-77339)

    Vulnerability from nvd – Published: 2026-09-18 16:37 – Updated: 2026-09-18 16:49
    VLAI
    Title
    Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools
    Summary
    Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or authenticating the caller. When MCP SSE is enabled, a malicious website can use DNS rebinding to reach the loopback listener and issue MCP requests. If expose_control_tools is enabled, the attacker can enumerate process state, read or search logs, truncate logs, and start, stop, restart, or scale local processes; configured user-defined tools can expose additional commands and output. The Gin REST API token middleware does not protect this separately started MCP listener. This issue is fixed in version 1.120.0.
    Severity
    5.1 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:H/SA:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-18 16:49 UTC
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    • CWE-346 - Origin Validation Error
    Assigner
    References
    Impacted products
    Vendor Product Version
    F1bonacc1 process-compose Affected: < 1.120.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-77339 (GCVE-0-2026-77339)

    Vulnerability from cvelistv5 – Published: 2026-09-18 16:37 – Updated: 2026-09-18 16:49
    VLAI
    Title
    Process Compose: Browser DNS rebinding lets websites control local process-compose MCP tools
    Summary
    Process Compose is a scheduler and orchestrator for non-containerized applications. Prior to 1.120.0, the MCP SSE listener in src/mcp/server.go accepts browser-origin requests to /sse and the returned message endpoint without validating the Host header, validating the Origin header, or authenticating the caller. When MCP SSE is enabled, a malicious website can use DNS rebinding to reach the loopback listener and issue MCP requests. If expose_control_tools is enabled, the attacker can enumerate process state, read or search logs, truncate logs, and start, stop, restart, or scale local processes; configured user-defined tools can expose additional commands and output. The Gin REST API token middleware does not protect this separately started MCP listener. This issue is fixed in version 1.120.0.
    Severity
    5.1 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:H/SA:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-18 16:49 UTC
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    • CWE-346 - Origin Validation Error
    Assigner
    References
    Impacted products
    Vendor Product Version
    F1bonacc1 process-compose Affected: < 1.120.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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