CVEvulnerability
CVE-2026-101060
8.4 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-09-27
- Last modified
- 2026-09-30
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.4 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
- Weaknesses
- CWE-918
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.
Related
Weakness · CWE (1)
- CWE-918 Server-Side Request Forgery weakness
References
- https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-9qhg-99ww-9mqc github.com
- https://www.vulncheck.com/advisories/python-utcp-before-1.1.4-ssrf-via-unvalidated-http-redirects www.vulncheck.com
- https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-9qhg-99ww-9mqc github.com