Input validation error in OpenClaw - #VU126439
Published: April 17, 2026
Vulnerability identifier: #VU126439
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-20
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 inject untrusted input into trusted system event context.
The vulnerability exists due to improper input validation in agent hook event dispatch when processing externally supplied hook metadata. A remote attacker can supply crafted hook metadata to inject untrusted input into trusted system event context.
Remediation
Install security update from vendor's website.