CVE-2026-29612 OpenClaw < 2026.2.14 - Denial of Service via Large Base64 Media File Decoding

What is CVE-2026-29612?

CVE-2026-29612 is a medium-severity denial of service vulnerability in Openclaw Openclaw, published on 5 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

OpenClaw versions prior to 2026.2.14 decode base64-backed media inputs into buffers before enforcing decoded-size budget limits, allowing attackers to trigger large memory allocations. Remote attackers can supply oversized base64 payloads to cause memory pressure and denial of service.

Weakness: CWE-770

Which versions are affected by CVE-2026-29612?

4 open source packages ship an affected version, including openclaw and clawdbot. It affects 1 product.

Products include Openclaw Openclaw.

How do I fix CVE-2026-29612?

Upgrade openclaw to 2026.2.14 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-29612 being exploited?

There is no known exploitation of CVE-2026-29612 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
• How this page is made

Also known as GHSA-w2cg-vxx6-5xjg.