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-2026-101058

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-2026-101057

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-2026-101060

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...

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 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-2026-87983

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...

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...

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-2026-101057 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...

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-2026-101060: 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...

PT-2026-99572

Name of the Vulnerable Software and Affected Versions python-utcp versions prior to 1.1.4 Description An issue exists in the call tool function of the HttpCommunicationProtocol where the initial tool URL is validated, but subsequent HTTP redirects are followed without re-validating the target. Th...

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-2026-101058: 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...

PT-2026-99570

Name of the Vulnerable Software and Affected Versions python-utcp pip package utcp-http versions prior to 1.1.12 Description The software fails to verify if tool URLs in a hand-written UTCP manual point to the agent's own loopback interface when the manual is retrieved from a remote, non-loopback...