CVE-2026-101060
HIGHCVSS 8.2Description
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.
Timeline
Published:September 27th, 2026 6:16 PM
Last modified:September 30th, 2026 5:32 PM
CVSS Scoring
CVSS v3: 8.2 (HIGH)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
- https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-9qhg-99ww-9mqc
- https://www.vulncheck.com/advisories/python-utcp-before-1.1.4-ssrf-via-unvalidated-http-redirects
- https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-9qhg-99ww-9mqc
Source: NIST NVD · Data may lag official sources by up to one minute