CVE-2026-101060
python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in…
- Risk score
- 66/100
- CVSS
- 8.2 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 27 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 th…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.1.4 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 8.2 high
- Remotely exploitable without logging in
- On your watchlist: python
References
- 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
Original 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.
Last activity 27 Sep 2026. Patch Forecast updates every hour.