Critical severity · published May 6, 2026
CVE-2026-43575
OpenClaw 2026.2.21 < 2026.4.10 - Authentication Bypass in Sandbox noVNC Helper Route
9.8
CVSS
0.4%
EPSS
No
On KEV
Description
OpenClaw versions 2026.2.21 before 2026.4.10 contain an authentication bypass vulnerability in the sandbox noVNC helper route that exposes interactive browser session credentials. Attackers can access the noVNC helper route without bridge authentication to gain unauthorized access to the interactive browser session.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
2026.2.21 before 2026.4.10 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43575
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-43575
Patch
https://github.com/openclaw/openclaw/commit/8dfbf3268bd224b7377d1ecca77a445100746085
Mitigation
https://github.com/openclaw/openclaw/security/advisories/GHSA-92jp-89mq-4374
Third Party Advisory
https://www.vulncheck.com/advisories/openclaw-authentication-bypass-in-sandbox-novnc-helper-route
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