Initiatives for
As the national authority for Cybersecurity the CCB has developed several initiatives for specific publics which are presented here.
Warning: Privilege Escalation in OpenClaw, Patch Immediately!
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Published : 21/04/2026
- Last update: 21/04/2026
- Affected software:
→ OpenClaw <=2026.3.28- Type: Privilege Escalation
- CVE/CVSS
→ CVE-2026-41329: CVSS 9.9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
Sources
https://github.com/openclaw/openclaw/security/advisories/GHSA-g5cg-8x5w-7jpm
Risks
A newly discovered vulnerability in OpenClaw allows attackers to bypass sandbox restrictions and escalate privileges, potentially exposing sensitive systems and compromising organizational security.
OpenClaw is an open source, self-hosted AI agent platform designed for workflow automation, event-driven processing, and task orchestration. It is commonly deployed in internal environments where automated pipelines interact directly with sensitive systems and data.
If exploited this could lead to data breaches, system compromise, and operational downtime impacting confidentiality, integrity, and availability of critical businesses.
Description
A critical security vulnerability, CVE-2026-41329, has been identified in OpenClaw versions up to and including 2026.3.28. This flaw arises from improper context validation during heartbeat processing, which allows attackers to exploit context inheritance mechanisms and manipulate the senderIsOwner parameter to bypass sandbox restrictions and escalate privileges.
In affected versions, an attacker can exploit this vulnerability remotely without requiring prior credentials, though exploitation depends on specific deployment conditions being met. This improper validation allows sandbox restrictions to be bypassed entirely, granting the attacker escalated privileges within the platform. Because no user interaction is required, any exposed OpenClaw instance running under the right conditions is potentially at risk. The vulnerability has been patched in version 2026.3.31, and users are strongly advised to update immediately.
Recommended Actions
Patch
The Centre for Cybersecurity Belgium strongly recommends installing updates for vulnerable devices with the highest priority after thorough testing.
Monitor/Detect
The CCB recommends organizations upscale monitoring and detection capabilities to identify any related suspicious activity and ensure a swift response in case of an intrusion.
In case of an intrusion, you can report an incident via https://ccb.belgium.be/en/cert/report-incident.
While patching appliances or software to the newest version may protect against future exploitation, it does not remediate historic compromise.
References
https://github.com/openclaw/openclaw/security/advisories/GHSA-g5cg-8x5w-7jpm