python-utcp before 1.1.12 SSRF via Remote HTTP Manual
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
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| universal-tool-calling-protocol | python-utcp | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Universal-tool-calling-protocol | Python-utcp |
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No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.174% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Universal-tool-calling-protocol
Universal-tool-calling-protocol python-utcp |
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| Vendors & Products |
Universal-tool-calling-protocol
Universal-tool-calling-protocol python-utcp |
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| Description | python-utcp (pip package utcp-http) before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensure_secure_url intentionally permits loopback HTTP for local development and native manuals bypassed the loopback check performed by the OpenAPI converter, an attacker who can serve a UTCP manual that a victim registers can cause the client to issue requests to services bound only to 127.0.0.1 on the victim host and have the response bodies returned to the caller (server-side request forgery). The http, sse and streamable_http protocols are all affected. Reach is limited to loopback, and exploitation further requires a loopback service that answers unauthenticated requests with useful data. Fixed in utcp-http 1.1.12, which rejects manuals fetched from a non-loopback origin that declare loopback tool URLs, keyed off the final post-redirect discovery URL. | |
| Title | python-utcp before 1.1.12 SSRF via Remote HTTP Manual | |
| Weaknesses | CWE-918 | |
| References |
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| Metrics |
cvssV3_1
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