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Advisories

OpenClaw 2026.1.21 < 2026.2.19 - Command Injection via Windows Shell Fallback in Lobster Extension

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severity
medium
date
Affecting

  • OpenClaw < 2026.2.19

CWE
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)
CVSS
5.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Credit
tdjackey
Description
OpenClaw versions 2026.1.21 prior to 2026.2.19 contain a command injection vulnerability in the Lobster extension's Windows shell fallback mechanism that allows attackers to inject arbitrary commands through tool-provided arguments. When spawn failures trigger shell fallback with shell: true, attackers can exploit cmd.exe command interpretation to execute malicious commands by controlling workflow arguments.

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