Link following in OpenClaw - #VU128768
Published: May 1, 2026
Vulnerability identifier: #VU128768
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
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 attacker to disclose sensitive information.
The vulnerability exists due to improper link resolution before file access in resolveSandboxedMediaSource() and resolvePreferredOpenClawTmpDir() when processing media paths through the fallback tmp flow. A remote attacker can submit a crafted media path via a symlink alias tmp root to disclose sensitive information.
Exploitation requires the fallback tmp root to be a symlink alias and occurs when /tmp/openclaw is unavailable or unsafe.
Remediation
Install security update from vendor's website.