PT-2026-25455 · Npm · Openclaw

Published 2026-03-03 · Updated 2026-03-03

OSV

CVSS v4.0

5.1

Medium

Base vector

AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

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.

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

GHSA-FG3M-VHRR-8GJ6

Affected Products

Openclaw

References · 6

• https://osv.dev/vulnerability/GHSA-fg3m-vhrr-8gj6 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31995 · Security Note
• https://github.com/openclaw/openclaw · Note
• https://github.com/openclaw/openclaw/security/advisories/GHSA-fg3m-vhrr-8gj6 · Note
• https://github.com/openclaw/openclaw/commit/ba7be018da354ea9f803ed356d20464df0437916 · Note
• https://vulncheck.com/advisories/openclaw-command-injection-via-windows-shell-fallback-in-lobster-extension · Note