CVE-2026-101061utcp-gql and utcp-websocket before 1.1.1 SSRF via URL validation bypass
Updated under an hour ago ()
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It affects universal-tool-calling-protocol python-utcp. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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utcp-gql before 1.1.1 and utcp-websocket before 1.1.1 contain server-side request forgery vulnerabilities due to incomplete application of CVE-2026-44661 fixes. The GraphQL plugin uses a vulnerable prefix check allowing bypass URLs like http://127.0.0.1.attacker.example, while the WebSocket plugin performs no URL validation despite documented security requirements. Attackers can force connections to internal services and cloud metadata endpoints by supplying malicious tool URLs in call templates, and receive configured API keys and OAuth tokens sent to attacker-controlled hosts.
- CVSS
- 4.7 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 30, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
universal-tool-calling-protocol python-utcp universal_tool_calling_protocol:python_utcp (from the name) | before 1.1.1; 1.1.1 not affected | CNA record |
References
- https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-ppx3-28rw-8fpfvendor-advisory
- https://www.vulncheck.com/advisories/utcp-gql-and-utcp-websocket-before-1.1.1-ssrf-via-url-validation-bypassthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.