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CVE PROGRAM SOURCE RECORD8.4 High

CVE-2026-101060

python-utcp before 1.1.4 SSRF via unvalidated HTTP redirects

Description

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 can return a 302 redirect to internal services, allowing the UTCP client to reach cloud metadata endpoints or internal HTTP services and return their response bodies to the caller.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

universal-tool-calling-protocol python-utcp

Default version status: unaffected

  • 0 to < 1.1.4affected
  • 1.1.4unaffected
pkg:pypi/utcp-http

References