Time-of-check Time-of-use (TOCTOU) Race Condition in OpenClaw - CVE-2026-32988
Published: April 8, 2026
Vulnerability identifier: #VU125152
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-32988
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw
OpenClaw
Detailed vulnerability description
The vulnerability allows a local user to modify files outside the intended validated path.
The vulnerability exists due to a time-of-check time-of-use race condition in the sandbox fs-bridge staged write flow when creating and populating temporary files before commit. A local user can race a parent-path alias change to cause writes outside the intended validated path.
The issue affects the temporary file materialization step before the final guarded replace operation, resulting in a sandbox boundary bypass within the writable mount scope.
How to mitigate CVE-2026-32988
Install security update from vendor's website.