Time-of-check Time-of-use (TOCTOU) Race Condition in OpenClaw - CVE-2026-22181
Published: April 8, 2026
Vulnerability identifier: #VU125120
CSH Severity: Low
CVSS v4: 7.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-22181
CWE-ID: CWE-367
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to access internal or private network targets.
The vulnerability exists due to a time-of-check time-of-use race condition in strict URL fetch paths when environment proxy variables are configured. A remote user can supply an attacker-influenced URL to access internal or private network targets.
The issue affects strict web-tool flows such as web_fetch and citation redirect resolution, where check-time destination validation can differ from connect-time routing through an environment proxy dispatcher.
Affected software
OpenClaw
How to mitigate CVE-2026-22181
Install security update from vendor's website.
OpenClaw - update to 2026.3.2