CVE-2026-3690

Name: CVE-2026-3690
Creator: NVD / NIST
Published: 2026-04-11T01:16:15.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2026-3690 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. OpenClaw Canvas Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of OpenClaw. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.0

7.4/10

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

EPSS Probability

0.67%

47.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-291

Affected Software

Vendor	Product	Versions
Openclaw	Openclaw	< 2026.2.19

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-vvjh-f6p9-5vcfExploit, Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-26-228/Exploit, Third Party Advisory

Timeline

Published: Apr 11, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-3690?

How severe is CVE-2026-3690?

CVE-2026-3690 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3690?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3690?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST