OpenClaw: BlueBubbles beta plugin webhook auth hardening (remove passwordless fallback)
Summary
BlueBubbles webhook auth in the optional beta iMessage plugin allowed a passwordless fallback path. In some reverse-proxy/local routing setups, this could allow unauthenticated webhook events.
Affected Component and Scope
- Component:
extensions/bluebubbleswebhook handler - Scope: only deployments using the optional BlueBubbles plugin where webhook password auth was not configured for incoming webhook events
Affected Packages / Versions
- Package:
openclaw/openclaw(npm) - Latest published npm version at triage time (2026-02-21):
2026.2.19-2 - Affected structured range:
<=2026.2.19-2 - Fixed on
main; planned patched release:2026.2.21(>=2026.2.21)
Details
The vulnerable implementation had multiple auth branches, including a passwordless fallback with loopback/proxy heuristics.
The fix now uses one authentication codepath:
- inbound webhook token/guid must match
channels.bluebubbles.password - webhook target matching is consolidated to shared plugin-sdk logic
- BlueBubbles config validation now requires
passwordwhenserverUrlis set
Impact
BlueBubbles is an optional beta iMessage plugin, and onboarding/channel-add flows already require a password. Practical exposure is mainly custom/manual configurations that omitted webhook password authentication.
Remediation
- Upgrade to a release that includes this patch (
>=2026.2.21, planned). - Ensure BlueBubbles webhook delivery includes a matching password (
?password=<password>orx-password).
Fix Commit(s)
6b2f2811dc623e5faaf2f76afaa9279637174590283029bdea23164ab7482b320cb420d1b90df806
Release Process Note
patched_versions is pre-set to the planned next release (2026.2.21) so once npm release is out, advisory publish can proceed without additional ticket edits.
OpenClaw thanks @zpbrent for reporting.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | < 2026.2.21 | 2026.2.21 |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-5mx2-2mgw-x8rm
- https://nvd.nist.gov/vuln/detail/CVE-2026-32896
- https://github.com/openclaw/openclaw/commit/283029bdea23164ab7482b320cb420d1b90df806
- https://github.com/openclaw/openclaw/commit/6b2f2811dc623e5faaf2f76afaa9279637174590
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-unauthenticated-webhook-access-via-passwordless-fallback-in-bluebubbles-plugin
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N- Weakness (CWE)
CWE-306- Platform
- npm
- Package
openclaw- Disclosed
- 03.03.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-5mx2-2mgw-x8rm - CC BY 4.0
Vulnerability history: openclaw
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 589
- First → latest
- 02.2026 10.2026
- Without a fix
- 9
- Exploited in attacks
- 0
Severity breakdown
- Critical 20
- High 215
- Medium 300
- Low 54
Disclosures per year
- 2026: 589
-
OpenClaw: BlueBubbles beta plugin webhook auth hardening (remove passwordless fallback) this entry
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