3 results · Feed
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High 7.1
utcp-http has an OAuth2 `tokenUrl` Trust Boundary Bypass in OpenAPI Conversion
### Summary The `utcp-http` library (<= 1.1.3) unconditionally trusts the `tokenUrl` field embedded in remote OpenAPI security schemes. When a victim registers an attacker-controlled OpenAPI spec and invokes any generated OAuth2-protected tool, the library PO…
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High 8.2
utcp-http SSRF: HTTP tool invocation follows redirects without re-validating the target
## Summary `HttpCommunicationProtocol.call_tool` validates only the pre-redirect tool URL, then issues the request with redirects enabled and never re-checks where it lands. A tool whose endpoint is an attacker-controlled public URL can therefore `302`-redire…
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Medium 4.7
python-utcp: SSRF via attacker-controlled OpenAPI servers[0].url in HTTP communication protocol
python-utcp is the python implementation of UTCP. Prior to 1.1.3, the utcp-http plugin is vulnerable to a blind Server-Side Request Forgery (SSRF) caused by a trust-boundary inconsistency between manual discovery and tool invocation. register_manual() validat…