SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-41333

OpenClaw before 2026.3.31 contains an authentication rate limiting bypass vulnerability that allows attackers to circumvent shared authentication protections using fake device tokens.

MEDIUM 6.3EPSS 0.39%

Does this matter?

Lower severity and a low EPSS score (0.39%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 4.0
6.3 MEDIUMCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.39% probability · 32th percentile
CISA KEV
Not listed
Weakness
CWE-799
Affected
openclaw/openclaw
Source
disclosure@vulncheck.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.