Vulnerability-Lookup

GHSA-5MX2-2MGW-X8RM

Vulnerability from github – Published: 2026-03-03 21:35 – Updated: 2026-03-30 13:45

Summary

OpenClaw: BlueBubbles beta plugin webhook auth hardening (remove passwordless fallback)

Details

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.

Severity ?

4.8 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

6.3 (Medium)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.2.21"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-32896"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-03T21:35:56Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\nBlueBubbles 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.\n\n### Affected Component and Scope\n- Component: `extensions/bluebubbles` webhook handler\n- Scope: only deployments using the optional BlueBubbles plugin where webhook password auth was not configured for incoming webhook events\n\n### Affected Packages / Versions\n- Package: `openclaw/openclaw` (npm)\n- Latest published npm version at triage time (2026-02-21): `2026.2.19-2`\n- Affected structured range: `\u003c=2026.2.19-2`\n- Fixed on `main`; planned patched release: `2026.2.21` (`\u003e=2026.2.21`)\n\n### Details\nThe vulnerable implementation had multiple auth branches, including a passwordless fallback with loopback/proxy heuristics.\n\nThe fix now uses one authentication codepath:\n- inbound webhook token/guid must match `channels.bluebubbles.password`\n- webhook target matching is consolidated to shared plugin-sdk logic\n- BlueBubbles config validation now requires `password` when `serverUrl` is set\n\n### Impact\nBlueBubbles 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.\n\n### Remediation\n- Upgrade to a release that includes this patch (`\u003e=2026.2.21`, planned).\n- Ensure BlueBubbles webhook delivery includes a matching password (`?password=\u003cpassword\u003e` or `x-password`).\n\n### Fix Commit(s)\n- `6b2f2811dc623e5faaf2f76afaa9279637174590`\n- `283029bdea23164ab7482b320cb420d1b90df806`\n\n### Release Process Note\n`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.\n\nOpenClaw thanks @zpbrent for reporting.",
  "id": "GHSA-5mx2-2mgw-x8rm",
  "modified": "2026-03-30T13:45:44Z",
  "published": "2026-03-03T21:35:56Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-5mx2-2mgw-x8rm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32896"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/283029bdea23164ab7482b320cb420d1b90df806"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/6b2f2811dc623e5faaf2f76afaa9279637174590"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-unauthenticated-webhook-access-via-passwordless-fallback-in-bluebubbles-plugin"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenClaw: BlueBubbles beta plugin webhook auth hardening (remove passwordless fallback)"
}

CVE-2026-32896 (GCVE-0-2026-32896)

Vulnerability from cvelistv5 – Published: 2026-03-21 00:42 – Updated: 2026-03-23 16:55 X_Open Source

Title

OpenClaw < 2026.2.21 - Unauthenticated Webhook Access via Passwordless Fallback in BlueBubbles Plugin

Summary

OpenClaw versions prior to 2026.2.21 BlueBubbles webhook handler 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.

Severity ?

6.3 (Medium)


                        
                          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

4.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

VulnCheck

References

URL

Tags

	https://github.com/openclaw/openclaw/security/adv…	third-party-advisory
	https://github.com/openclaw/openclaw/commit/6b2f2…	patch
	https://github.com/openclaw/openclaw/commit/28302…	patch
	https://www.vulncheck.com/advisories/openclaw-una…	third-party-advisory

Impacted products

	Vendor	Product	Version
	OpenClaw	OpenClaw	Affected: 0 , < 2026.2.21 (semver) Unaffected: 2026.2.21 (semver)

Date Public ?

2026-02-21 00:00

Credits

Peng Zhou (@zpbrent)

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-5MX2-2MGW-X8RM

Summary

Affected Component and Scope

Affected Packages / Versions

Details

Impact

Remediation

Fix Commit(s)

Release Process Note

CVE-2026-32896 (GCVE-0-2026-32896)

Tags

Sightings

Nomenclature