CVE-2026-45370

python-utcp: Full Process Environment Exposed to CLI Subprocess - Secrets Leakage via Command Injection

HIGH
7.7
CVSS Score
Published: May 14, 2026 at 08:14 PM UTC
Updated: October 26, 2026 at 02:10 PM UTC
1 product affected across 1 vendorPython Utcp

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Severity
HIGH7.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.1.2
Affected range stops below 1.1.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-526

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