Vulnerability · Published Apr 23, 2026 · Assigned by VulnCheck

CVE-2026-41333OpenClaw < 2026.3.31 - Authentication Rate Limiting Bypass via Fake DeviceToken

Low 3.7

In plain English

A low-severity security flaw in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.7Low

Exploit odds (30 days)0.4%top 66.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

OpenClaw before 2026.3.31 contains an authentication rate limiting bypass vulnerability that allows attackers to circumvent shared authentication protections using fake device tokens. Attackers can exploit the mixed WebSocket authentication flow to bypass rate limiting controls and conduct brute force attacks against weak shared passwords.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	openclaw	2026.3.31	GHSA-6p8r-6m93-557f

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	0 – before 2026.3.31

Weakness: CWE-799 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References

GitHub Security Advisory (GHSA-6p8r-6m93-557f) vendor-advisory
Patch Commit patch
VulnCheck Advisory: OpenClaw < 2026.3.31 - Authentication Rate Limiting Bypass via Fake DeviceToken third-party-advisory