https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-02T18:48:24.580778+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-31995 CVE-2026-31995 — OpenClaw 2026.1.21 < 2026.2.19 - Command Injection via Windows Shell Fallback in Lobster Extension 2026-10-02T18:48:24.585961+00:00

Affected: OpenClaw

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.

 https://vulnerability.circl.lu/vuln/ghsa-fg3m-vhrr-8gj6 GHSA-fg3m-vhrr-8gj6 — OpenClaw has Windows Lobster shell fallback command injection in constrained fallback path 2026-10-02T18:48:24.586089+00:00

Affected: npm: openclaw

### Summary On Windows, the Lobster extension previously retried certain spawn failures (`ENOENT`/`EINVAL`) with `shell: true` for wrapper compatibility. In that fallback path, tool-provided arguments could be interpreted by `cmd.exe` if fallback was triggered.

### Affected Packages / Versions - Package: `openclaw` (npm) - Latest published version at triage: `2026.2.17` - Affected range: `>= 2026.1.21 <= 2026.2.17` - Patched version: `2026.2.19` (pre-set for next release)

### Fix The Windows shell fallback was removed. Wrapper compatibility is preserved by resolving `.cmd`/`.bat` shims to a concrete Node entrypoint (or executable) and executing with explicit argv (no shell). If a safe entrypoint cannot be resolved, execution now fails closed with a guided error.

### Fix Commit(s) - `ba7be018da354ea9f803ed356d20464df0437916`

### Severity Context This issue requires Windows plus fallback-triggering conditions, and argument control through a local operator-defined workflow.

OpenClaw thanks @tdjackey for reporting.