CVE-2026-43532

7.7

OpenClaw · OpenClaw

OpenClaw 2026.4.7 before 2026.4.10 fails to normalize Discord event cover image parameters, allowing attackers to bypass media normalization.

Executive summary

An incomplete list of disallowed inputs vulnerability in OpenClaw allows low privileged attackers to inject host-local media references, posing significant integrity risks to sandbox media processing.

Vulnerability

This is an incomplete list of disallowed inputs flaw categorized under CWE-184, occurring within sandbox media processing parameters where low privileged attackers can bypass image normalization checks.

Business impact

A successful exploit allows threat actors to manipulate media processing paths, potentially compromising internal server resources or enabling subsequent chained attacks. While the CVSS score is 7.7, which indicates high severity, the integrity impact is primarily localized to sandbox operations, though it warrants prompt patching to prevent lateral movement or unauthorized resource access.

Remediation

Immediate Action: Update OpenClaw to version 2026.4.10 or later using the npm package manager to resolve the normalization bypass.

Proactive Monitoring: Monitor application access logs for unusual image parameters or unexpected media references submitted through Discord event cover actions.

Compensating Controls: Implement strict input validation rules at the web application firewall level to inspect and reject non-normalized media parameters.

Exploitation status

Public Exploit Available: No

Analyst recommendation

Administrators must prioritize updating the OpenClaw package to version 2026.4.10 as soon as possible. Applying this patch eliminates the media normalization flaw and secures the sandbox processing environment against unauthorized parameter injection.

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Sources

Originally found and disclosed by Akiyama Mio (@Telecaster2147), per the CVE Program record.