Vulnerability Report

CVE-2026-3690

Title: OpenClaw Canvas Authentication Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2026-3690.

CWE Category CWE-291
Published Date Apr 11, 2026
Modified Date Apr 27, 2026
Exploit Status Not Found
Score 7.4 CVSS v3.0
Exploit Probability (EPSS)
0.67%

Vulnerability Summary

CVE-2026-3690: 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.

Impacted Vendors

O
openclaw 1

Reference Links

https://github.com/openclaw/openclaw/security/advisories/GHSA-vvjh-f6p9-5vcf https://www.zerodayinitiative.com/advisories/ZDI-26-228/
CVSS v3.0
Source Entity [email protected]
Severity HIGH
7.4
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-3690 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Stack

No specific products linked.