Link following in OpenClaw - CVE-2026-32055
Published: April 7, 2026
Vulnerability identifier: #VU125079
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-32055
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw
OpenClaw
Detailed vulnerability description
The vulnerability allows a remote user to write files outside the workspace boundary.
The vulnerability exists due to improper link resolution before file access in the workspace-only path validation logic when processing a guarded workspace path that traverses an in-workspace symlink pointing outside the workspace to a non-existent leaf. A remote user can perform a first write through the crafted path to write files outside the workspace boundary.
The issue occurs during the initial validation window for a non-existent out-of-root symlink target.
How to mitigate CVE-2026-32055
Install security update from vendor's website.