CVE-2026-32896
MEDIUM severity · CVSS 4.8 · Missing authentication
4.8CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactLow
Integrity impactLow
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/openclaw/openclaw/commit/283029bdea23164ab7482b320cb420d1b90df806 ↗
Additional information
- NVD record
- https://github.com/openclaw/openclaw/commit/283029bdea23164ab7482b320cb420d1b90df806Patch
- https://github.com/openclaw/openclaw/commit/6b2f2811dc623e5faaf2f76afaa9279637174590Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-5mx2-2mgw-x8rmAdvisory
- https://www.vulncheck.com/advisories/openclaw-unauthenticated-webhook-access-via-passwordless-fallback-in-bluebubbles-pluginAdvisory