CVE-2026-32896Withdrawn

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

CVSS 4.0 6.3 MEDIUMCVSS 3.1 4.8 MEDIUMEUVD CVSS 4.0 6.3 CVSS 4.0 · [email protected] · Secondary 6.3 MEDIUMCVSS 3.1 · [email protected] · Secondary 4.8 MEDIUMCVSS 3.1 · [email protected] · Primary 6.5 MEDIUMCVSS_V3 CVSS_V4 Publisher rating MODERATEFixed by openclaw 2026.2.21CVSS_V3 CVSS_V4 Publisher rating MODERATEKEV status unknown

Original advisory

cve-program · CVE-2026-32896

Published

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.

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euvd · EUVD-2026-13972

Published

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nvd · CVE-2026-32896

Published

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osv · GHSA-5mx2-2mgw-x8rm

Published

### 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.

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osv · GHSA-vh4c-j2xv-9pv9

Withdrawn

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-5mx2-2mgw-x8rm. This link is maintained to preserve external references. ## Original Description 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.

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Affected versions, risk and source history

Exploitation and risk

Source status

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

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This view includes predictions for CVE identifiers explicitly listed in public NuGet advisories. Microsoft release pages have their own prediction coverage. Check source status for the scope and latest checks.

No exploitation or prediction data is available here for these CVEs. This does not mean they are safe or unlikely to be exploited.

cve-program · CVE-2026-32896

Published

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

Source published: 21 Mar 2026 00:42:32 UTC
Source modified: 17 Sep 2026 17:54:16 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · 6.3 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

CVSS 3.1 · 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

euvd · EUVD-2026-13972

Published

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 …

Additional publisher context

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Mar 21, 2026, 12:42:32 AM

dateUpdated: Sep 17, 2026, 5:54:16 PM

1 related source bulletins · separate from aliases

WID-SEC-W-2026-0472: OpenClaw: Mehrere Schwachstellen

CVE-2026-22168 · CVE-2026-22169 · CVE-2026-22170 · CVE-2026-22174 · CVE-2026-22177 · CVE-2026-22179 · CVE-2026-27158 · CVE-2026-27159 · CVE-2026-27164 · CVE-2026-27165 · CVE-2026-27209 · CVE-2026-27524 · CVE-2026-27566 · CVE-2026-28455 · CVE-2026-29607 · CVE-2026-31994 · CVE-2026-31995 · CVE-2026-32000 · CVE-2026-32003 · CVE-2026-32008 · CVE-2026-32010 · CVE-2026-32017 · CVE-2026-32018 · CVE-2026-32019 · CVE-2026-32020 · CVE-2026-32022 · CVE-2026-32024 · CVE-2026-32029 · CVE-2026-32030 · CVE-2026-32032 · CVE-2026-32034 · CVE-2026-32039 · CVE-2026-32045 · CVE-2026-32046 · CVE-2026-32049 · CVE-2026-32056 · CVE-2026-32061 · CVE-2026-32062 · CVE-2026-32063 · CVE-2026-32064 · CVE-2026-32896 · CVE-2026-32897 · CVE-2026-32900 · CVE-2026-32907 · CVE-2026-32908 · CVE-2026-3689 · CVE-2026-3690 · CVE-2026-4039

Source published: Mar 21, 2026, 12:42:32 AM (timezone not stated)
Source modified: Sep 17, 2026, 5:54:16 PM (timezone not stated)
Saved here: 12 Nov 2026 05:03:23 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

EUVD CVSS 4.0 · 6.3 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

nvd · CVE-2026-32896

Published

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 …

Additional publisher context

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-306

Original publisher date fields

published: 2026-03-21T01:17:10.510

lastModified: 2026-09-17T18:16:41.327

1 source CPE criteria · context only

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 21 Mar 2026 01:17:10 UTC
Source modified: 17 Sep 2026 18:16:41 UTC
Saved here: 25 Oct 2026 07:19:26 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · [email protected] · Secondary · 6.3 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS 3.1 · [email protected] · Secondary · 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS 3.1 · [email protected] · Primary · 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

osv · GHSA-5mx2-2mgw-x8rm

Published

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

Source published: 3 Mar 2026 21:35:56 UTC
Source modified: 30 Mar 2026 14:11:33 UTC
Saved here: 24 Oct 2026 13:17:17 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS_V3 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS_V4 · 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

Publisher rating · MODERATE

osv · GHSA-vh4c-j2xv-9pv9

Withdrawn

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

Source published: 21 Mar 2026 03:31:15 UTC
Source modified: 24 Mar 2026 19:17:30 UTC
Saved here: 24 Oct 2026 13:17:17 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS_V3 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS_V4 · 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Publisher rating · MODERATE