OpenClaw's sandbox skill mirroring path traversal vulnerability could write outside the sandbox workspace

Overview

In affected versions, OpenClaw’s sandbox skill mirroring used the skill’s frontmatter name as part of the destination path when copying skills into the sandbox workspace. A crafted skill name containing traversal segments (for example ../) or an absolute path could cause the copy to write outside <sandbox_workspace>/skills/.

Impact

• Files may be written outside the sandbox workspace root (within the permissions of the user running OpenClaw).

Attack Requirements

• Attacker can provide a skill package (controls SKILL.md frontmatter).
• Victim runs with sandbox enabled and skill mirroring into the sandbox workspace.

Affected Packages / Versions

• openclaw (npm): < 2026.2.14

Fixed In

• openclaw (npm): >= 2026.2.14

Fix Commit(s)

• 3eb6a31b6fcf8268456988bfa8e3637d373438c2

OpenClaw thanks @1seal for reporting.