CVE-2026-32896
OpenClaw < 2026.2.21 - Unauthenticated Webhook Access via Passwordless Fallback in BlueBubbles Plugin
CVSS Score
4.8
EPSS Score
0.1%
EPSS Percentile
18th
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.
| CWE | CWE-306 |
| Vendor | openclaw |
| Product | openclaw |
| Published | Mar 21, 2026 |
| Last Updated | Mar 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
OpenClaw / OpenClaw
0 < 2026.2.21
References
github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-5mx2-2mgw-x8rm github.com: https://github.com/openclaw/openclaw/commit/6b2f2811dc623e5faaf2f76afaa9279637174590 github.com: https://github.com/openclaw/openclaw/commit/283029bdea23164ab7482b320cb420d1b90df806 vulncheck.com: https://www.vulncheck.com/advisories/openclaw-unauthenticated-webhook-access-via-passwordless-fallback-in-bluebubbles-plugin
Credits
🔍 Peng Zhou (@zpbrent)