CVE-2026-45370
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.7
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- EPSS probability
- 0.22%
- CWE
- CWE-526
- Published
- 2026-05-14
- Last modified
- 2026-05-15
Affected products
- universal-tool-calling-protocol python-utcp
Weakness type
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