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Product · universal-tool-calling-protocol

python-utcp

9 known vulnerabilities.

python-utcp at a glance

Last 12 months
9
Critical · all time
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9 results · Feed

  • Medium 4.7

    utcp-gql and utcp-websocket before 1.1.1 SSRF via URL validation bypass

    utcp-gql before 1.1.1 and utcp-websocket before 1.1.1 contain server-side request forgery vulnerabilities due to incomplete application of CVE-2026-44661 fixes. The GraphQL plugin uses a vulnerable prefix check allowing bypass URLs like http://127.0.0.1.attac…

  • High 7.1

    utcp-http before 1.1.4 OAuth2 tokenUrl Trust Boundary Bypass

    utcp-http before 1.1.4 fails to validate the OAuth2 tokenUrl field from remote OpenAPI specifications, allowing attackers to redirect credential submission to arbitrary endpoints. When a victim registers an attacker-controlled OpenAPI spec and invokes a gener…

  • High 8.2

    python-utcp before 1.1.4 SSRF via unvalidated HTTP redirects

    python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in HttpCommunicationProtocol.call_tool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint…

  • Medium 6.9

    python-utcp before 1.1.12 SSRF via Remote HTTP Manual

    python-utcp (pip package utcp-http) before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensure_secure_url…

  • Low 3.1

    utcp-mcp before 1.1.3 SSRF via unvalidated MCP server URL

    utcp-mcp (the MCP plugin of python-utcp) through 1.1.2 connects to the HTTP and WebSocket MCP server URLs given in a call template's mcpServers configuration without the ensure_secure_url validation that the HTTP-family plugins apply, so the HTTPS/WSS-or-loop…

  • Medium 6.3

    universal-tool-calling-protocol python-utcp utcp-gql/utcp-websocket server-side request forgery

    A vulnerability was detected in universal-tool-calling-protocol python-utcp 1.1.0. This affects an unknown function of the component utcp-gql/utcp-websocket. Performing a manipulation results in server-side request forgery. The attack can be initiated remotel…

  • High 8.3

    python-utcp: Command Injection via Unsanitized Argument Substitution in CLI Communication Protocol

    python-utcp is the python implementation of UTCP. Prior to 1.1.3, the _substitute_utcp_args method in cli_communication_protocol.py inserts user-controlled tool_args values directly into shell command strings without any sanitization or escaping. These comman…

  • High 7.7

    python-utcp: Full Process Environment Exposed to CLI Subprocess - Secrets Leakage via Command Injection

    python-utcp is the python implementation of UTCP. Prior to 1.1.3, _prepare_environment() in cli_communication_protocol.py passes a full copy of os.environ to every CLI subprocess. When combined with CVE-2026-45369, an attacker can exfiltrate all process-level…

  • Medium 4.7

    python-utcp: SSRF via attacker-controlled OpenAPI servers[0].url in HTTP communication protocol

    python-utcp is the python implementation of UTCP. Prior to 1.1.3, the utcp-http plugin is vulnerable to a blind Server-Side Request Forgery (SSRF) caused by a trust-boundary inconsistency between manual discovery and tool invocation. register_manual() validat…