CVE-2026-31995CWE-78

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

Medium · published March 19, 2026

CVSS v4.0
5.8
EPSS
1%
Percentile
57.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.8 · MEDIUM
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
EPSS
0.00827 · 57.0th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-03-19T01:00Z
EPSS history
Timeline
  • 19 MAR 01:00Z
    OpenClaw 2026.1.21 < 2026.2.19 - Command Injection via Windows Shell Fallback in Lobster Extension
    cvelistv5