CVE-2026-31995
OpenClaw 2026.1.21 < 2026.2.19 - Command Injection via Windows Shell Fallback in Lobster Extension
- State
- Published
- Severity
- 5.8 Medium
- Published
- Mar 19, 2026
- Updated
- Jun 23, 2026
- Reserved
- Mar 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.8 Medium | 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 | VulnCheck |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L | VulnCheck |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)
Affected Products
| Product | Versions |
|---|---|
OpenClawOpenClaw |
|
References
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