{"cve":"CVE-2026-45370","nvd":{"published":"2026-05-14T21:16:48.350","modified":"2026-10-26T14:10:00.130","status":"Deferred","description":"python-utcp is the python implementation of UTCP. Prior to 1.1.3, _prepare_environment() in cli_communication_protocol.py passes a full copy of os.environ to every CLI subprocess. When combined with CVE-2026-45369, an attacker can exfiltrate all process-level secrets in a single tool call. This vulnerability is fixed in 1.1.3.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","score":7.7},"cwes":["CWE-526"],"references":["https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-5v57-8rxj-3p2r","https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-5v57-8rxj-3p2r"],"products":[],"source":"nvd","synced_at":"2026-10-26T14:27:29.784594657+00:00"},"epss":{"cve":"CVE-2026-45370","score":0.00223,"percentile":0.12843,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-5v57-8rxj-3p2r","url":"https://osv.dev/vulnerability/GHSA-5v57-8rxj-3p2r","summary":"python-utcp: Full Process Environment Exposed to CLI Subprocess - Secrets Leakage via Command Injection","modified":"2026-07-13T16:42:53.296161920Z","packages":[{"ecosystem":"PyPI","name":"utcp-cli","purl":"pkg:pypi/utcp-cli","ranges":["<1.1.2"],"fixed":["1.1.2"]}]},{"id":"PYSEC-2026-3395","url":"https://osv.dev/vulnerability/PYSEC-2026-3395","summary":"python-utcp: Full Process Environment Exposed to CLI Subprocess - Secrets Leakage via Command Injection","modified":"2026-07-13T16:33:27.588221707Z","packages":[{"ecosystem":"PyPI","name":"utcp-cli","purl":"pkg:pypi/utcp-cli","ranges":["<1.1.2"],"fixed":["1.1.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}