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MEDIUM severity

OpenClaw: BlueBubbles beta plugin webhook auth hardening (remove passwordless fallback)GHSA-5mx2-2mgw-x8rm

MEDIUMFix: openclaw/openclaw@283029b

GHSA-5mx2-2mgw-x8rm is a medium-severity (CVSS 4.8) Missing Authentication vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.

Also known asCVE-2026-32896
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-5mx2-2mgw-x8rm.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs17th percentile — riskier than 17% of all scored CVEsHighest risk
0.00%0.31%0.62%0.93%0.1%0.3%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

133other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
openclawnpm
2.5Mdownloads / week

Description

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/bluebubbles webhook 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 password when serverUrl is 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> or x-password).

Fix Commit(s)

  • 6b2f2811dc623e5faaf2f76afaa9279637174590
  • 283029bdea23164ab7482b320cb420d1b90df806

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 Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmopenclawall versions2026.2.21npm install openclaw@2026.2.21

Affected Products

1 product · 1 configurations
Application
openclawopenclaw
< 2026.2.21
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openclaw, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update openclaw to 2026.2.21 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-5mx2-2mgw-x8rm is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

### 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/bluebubbles` webhook 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 r
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OpenClaw: BlueBubbles beta plugin webhook auth…