CVE-2026-32896

MEDIUM

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

Title source: cna
STIX 2.1

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.

References (4)

Core 4
Core References
Third Party Advisory third-party-advisory
GitHub Security Advisory (GHSA-5mx2-2mgw-x8rm)
https://github.com/openclaw/openclaw/security/advisories/GHSA-5mx2-2mgw-x8rm
Third Party Advisory third-party-advisory
VulnCheck Advisory: OpenClaw < 2026.2.21 - Unauthenticated Webhook Access via Passwordless Fallback in BlueBubbles Plugin
https://www.vulncheck.com/advisories/openclaw-unauthenticated-webhook-access-via-passwordless-fallback-in-bluebubbles-plugin

Scores

CVSS v3 4.8
EPSS 0.0025
EPSS Percentile 15.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-306
Status published
Products (4)
npm/openclaw 0 - 2026.2.21npm
OpenClaw/OpenClaw < 2026.2.21
openclaw/openclaw < 2026.2.21
OpenClaw/OpenClaw 2026.2.21
Published Mar 21, 2026
Tracked Since Mar 21, 2026