ZDI-26-228: 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 ZDI has assigned a CVSS rating of 7.4. The following CVEs are assigned: CVE-2026-3690.
AI Analysis
Technical Summary
This vulnerability in OpenClaw Canvas allows remote attackers to bypass authentication due to improper implementation of the authentication function on canvas endpoints. The flaw enables attackers to access protected functionality without credentials. The Zero Day Initiative assigned a CVSS v3.1 score of 7.4 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N), reflecting high impact on confidentiality and integrity but requiring high attack complexity. OpenClaw has released an update to fix this issue, as detailed in their security advisory.
Potential Impact
Successful exploitation allows remote attackers to bypass authentication controls on affected OpenClaw installations, potentially leading to unauthorized access to sensitive information and system integrity compromise. There is no impact on availability reported. No known active exploitation has been observed.
Mitigation Recommendations
An official fix is available from OpenClaw. Users should apply the update provided in the OpenClaw security advisory at https://github.com/openclaw/openclaw/security/advisories/GHSA-vvjh-f6p9-5vcf to remediate this vulnerability. No additional mitigations are indicated by the vendor advisory.
ZDI-26-228: OpenClaw Canvas Authentication Bypass Vulnerability
Description
This vulnerability allows remote attackers to bypass authentication on affected installations of OpenClaw. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.4. The following CVEs are assigned: CVE-2026-3690.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in OpenClaw Canvas allows remote attackers to bypass authentication due to improper implementation of the authentication function on canvas endpoints. The flaw enables attackers to access protected functionality without credentials. The Zero Day Initiative assigned a CVSS v3.1 score of 7.4 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N), reflecting high impact on confidentiality and integrity but requiring high attack complexity. OpenClaw has released an update to fix this issue, as detailed in their security advisory.
Potential Impact
Successful exploitation allows remote attackers to bypass authentication controls on affected OpenClaw installations, potentially leading to unauthorized access to sensitive information and system integrity compromise. There is no impact on availability reported. No known active exploitation has been observed.
Mitigation Recommendations
An official fix is available from OpenClaw. Users should apply the update provided in the OpenClaw security advisory at https://github.com/openclaw/openclaw/security/advisories/GHSA-vvjh-f6p9-5vcf to remediate this vulnerability. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-228/","fetched":true,"fetchedAt":"2026-05-26T20:00:00.765Z","wordCount":180}
Threat ID: 6a15fc93e29bf47b5055e282
Added to database: 5/26/2026, 8:03:31 PM
Last enriched: 5/26/2026, 8:16:35 PM
Last updated: 5/27/2026, 5:03:06 AM
Views: 3
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