CVE-2026-101060

python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in HttpCommunicationProtocol.calltool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal...

CVE-2026-101057

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 ensuresecureurl validation that the HTTP-family plugins apply, so the HTTPS/WSS-or-loopback rule is not enforced. A call template...

CVE-2026-101058

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 ensuresecureurl intentionally permits loopback HTTP for...

CVE-2026-101060 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.calltool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal...

EUVD-2026-87985

python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in HttpCommunicationProtocol.calltool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal...

CVE-2026-101060 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.calltool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal...

CVE-2026-101060

Versions of python-utcp before 1.1.4 are vulnerable to a Server-Side Request Forgery (SSRF) in the HttpCommunicationProtocol.call_tool function. The root cause is that the application validates the initial tool URL but fails to re-validate the target during HTTP redirects . An attacker controllin...

CVE-2026-101058

The python-utcp (pip package utcp-http ) version before 1.1.12 is vulnerable to a Server-Side Request Forgery (SSRF) . The flaw exists because the software fails to verify if tool URLs declared in a hand-written UTCP manual point to the host's loopback interface (127.0.0.1) when the manual is fet...

CVE-2026-101058 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 ensuresecureurl intentionally permits loopback HTTP for...

EUVD-2026-87983

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 ensuresecureurl intentionally permits loopback HTTP for...

CVE-2026-101058 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 ensuresecureurl intentionally permits loopback HTTP for...

EUVD-2026-87982

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 ensuresecureurl validation that the HTTP-family plugins apply, so the HTTPS/WSS-or-loopback rule is not enforced. A call template...

CVE-2026-101057

The utcp-mcp plugin (part of python-utcp ) versions through 1.1.2 is vulnerable to Server-Side Request Forgery (SSRF) . The root cause is a lack of ensure_secure_url validation when connecting to HTTP or WebSocket MCP server URLs provided in a call template's mcpServers configuration. This bypass...

CVE-2026-101057 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 ensuresecureurl validation that the HTTP-family plugins apply, so the HTTPS/WSS-or-loopback rule is not enforced. A call template...

CVE-2026-101057 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 ensuresecureurl validation that the HTTP-family plugins apply, so the HTTPS/WSS-or-loopback rule is not enforced. A call template...

CVE-2026-101058: Server-Side Request Forgery (SSRF)

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 ensuresecureurl intentionally permits loopback HTTP for...

CVE-2026-101057: Cleartext Transmission of Sensitive Information

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 ensuresecureurl validation that the HTTP-family plugins apply, so the HTTPS/WSS-or-loopback rule is not enforced. A call template...

CVE-2026-101060: Server-Side Request Forgery (SSRF)

python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in HttpCommunicationProtocol.calltool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal...

Duplicate Advisory: utcp-gql SSRF: CVE-2026-44661 fix not applied to the GraphQL and WebSocket plugins

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-ppx3-28rw-8fpf. This link is maintained to preserve external references. Original Description A vulnerability was detected in universal-tool-calling-protocol python-utcp 1.1.0. This affects an unknown function o...

CVE-2026-12210 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 remotely. The exploit is now public and may b...