VulnSocial

CVE-2026-45369Disclosure

LOWCVSS 8.3 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

python-utcp is the python implementation of UTCP. Prior to 1.1.3, the _substitute_utcp_args method in cli_communication_protocol.py inserts user-controlled tool_args values directly into shell command strings without any sanitization or escaping. These commands are then executed via /bin/bash -c (Unix) or powershell.exe -Command (Windows), allowing an attacker to inject arbitrary shell commands. This vulnerability is fixed in 1.1.3.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-78

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-14: 2Patch / Workaround · 2026-05-14: 1Technical Details · 2026-05-14: 205-14
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets1 URL
By indicator
Full discourse2 posts
  • Upwind Security MDR@UpwindMDR
    Patch

    🚨 Critical - utcp-cli OS Command Injection → Unauthenticated RCE (CVE-2026-45369) _substitute_utcp_args in utcp-cli embeds user-controlled arguments straight into /bin/bash -c / powershell.exe calls without escaping, letting unauthenticated attackers inject shell metacharacters (;, |, &, backticks, $()) for full RCE (CVSS 10.0). Patch adds shlex.quote on Unix and PowerShell single-quoting on Windows. 👉 Affected: utcp-cli (pip) ≤ 1.1.1 | Upgrade to 1.1.2

    Post summary

    The post announces a critical command‑injection flaw in utcp-cli (CVE‑2026‑45369), provides technical details and CVSS score, and highlights the vendor’s patch that mitigates the issue.

    0001098
    187 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-45369 python-utcp is the python implementation of UTCP. Prior to 1.1.3, the _substitute_utcp_args method in cli_communication_protocol.py inserts user-controlled tool_args … https://www.cve.org/CVERecord?id=CVE-2026-45369

    Post summary

    The post discloses that prior to version 1.1.3 of python‑utcp, the _substitute_utcp_args method accepts user-controlled arguments, exposing a potential vulnerability.

    00000184
    57.5K followersView on X

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