OpenClaw Canvas Authentication Bypass Vulnerability

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Summary

CVECVE-2026-3690
StatePUBLISHED
Assignerzdi
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-11 01:16:15 UTC
Updated2026-04-11 01:16:15 UTC
DescriptionOpenClaw 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.

Risk And Classification

Primary CVSS: v3.0 7.4 HIGH from [email protected]

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem Types: CWE-291 | CWE-291 CWE-291: Reliance on IP Address for Authentication

VersionSourceTypeScoreSeverityVector
3.0[email protected]Secondary7.4HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
3.0CNACVSS7.4HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenClaw OpenClaw affected 2026.2.17 Not specified

References

ReferenceSourceLinkTags
www.zerodayinitiative.com/advisories/ZDI-26-228 [email protected] www.zerodayinitiative.com
github.com/openclaw/openclaw/security/advisories/GHSA-vvjh-f6p9-5vcf [email protected] github.com
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