#VU125117 Time-of-check Time-of-use (TOCTOU) Race Condition in OpenClaw - CVE-2026-27670
Published: April 8, 2026
Vulnerability identifier: #VU125117
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-27670
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
OpenClaw
OpenClaw
Software vendor:
OpenClaw
OpenClaw
Description
The vulnerability allows a local user to write files outside the intended destination directory.
The vulnerability exists due to time-of-check time-of-use race condition in ZIP extraction in src/infra/archive.ts when processing ZIP archives. A local user can rebind a parent-directory symlink between path validation and the final write to write files outside the intended destination directory.
Remediation
Install security update from vendor's website.