CVE-2026-35636 OpenClaw 2026.3.11 < 2026.3.25 - Session Isolation Bypass via sessionId Resolution

What is CVE-2026-35636?

CVE-2026-35636 is a high-severity missing authorization vulnerability in Openclaw Openclaw, published on 9 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenClaw versions 2026.3.11 through 2026.3.24 contain a session isolation bypass vulnerability where session_status resolves sessionId to canonical session keys before enforcing visibility checks. Sandboxed child sessions can exploit this to access parent or sibling sessions that should be blocked by explicit sessionKey restrictions.

Weakness: CWE-696

Which versions are affected by CVE-2026-35636?

2 open source packages ship an affected version, including openclaw. It affects 1 product.

Products include Openclaw Openclaw.

How do I fix CVE-2026-35636?

Upgrade openclaw to 2026.3.28 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-35636 being exploited?

There is no known exploitation of CVE-2026-35636 in the wild and no public exploit code.

Other vulnerabilities in Openclaw Openclaw

• CVE-2026-28363 Security feature bypass in OpenClaw Critical 9.9
• CVE-2026-30741 Code injection in n/a Critical 9.8
• CVE-2026-33579 OpenClaw < 2026.3.28 - Privilege Escalation via Missing Caller Scope Validation in Device Pair Approval Critical 9.4
• CVE-2026-32922 OpenClaw < 2026.3.11 - Privilege Escalation via Unvalidated Scope in device.token.rotate Critical 9.4
• CVE-2026-32978 OpenClaw < 2026.3.11 - Approval Bypass via Unrecognized Script Runners Critical 9.4

All Openclaw Openclaw vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• GitHub advisory
• How this page is made

Also known as GHSA-55rv-68q5-wxmq, GHSA-q2qc-744p-66r2, MINI-6rv2-6267-hcj9, MINI-fx5h-hw3m-g2x8.