| Component | OpenClaw |
| Severity | high (CVSS 7.4) |
| CVSS vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| Published (NVD) | 2026-04-11 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.2.19 |
| Fixed in | 2026.2.19 |
| Weakness | CWE-291 |
| CISA KEV | not listed |
NVD description
OpenClaw Canvas Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of OpenClaw. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the the authentication function for canvas endpoints. The issue results from improper implementation of authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-29311.
What to do
- Upgrade OpenClaw to
2026.2.19or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-3690
- https://github.com/openclaw/openclaw/security/advisories/GHSA-vvjh-f6p9-5vcf
- https://www.zerodayinitiative.com/advisories/ZDI-26-228/
Read more
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