| Component | OpenClaw |
| Severity | medium (CVSS 4.8) |
| CVSS vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
| Published (NVD) | 2026-03-21 |
| Last modified | 2026-09-17 |
| Affected versions | openclaw < 2026.2.21 |
| Fixed in | 2026.2.21 |
| Weakness | CWE-306 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade OpenClaw to
2026.2.21or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-32896
- https://github.com/openclaw/openclaw/security/advisories/GHSA-5mx2-2mgw-x8rm
- https://github.com/openclaw/openclaw/commit/283029bdea23164ab7482b320cb420d1b90df806
- https://github.com/openclaw/openclaw/commit/6b2f2811dc623e5faaf2f76afaa9279637174590
- https://www.vulncheck.com/advisories/openclaw-unauthenticated-webhook-access-via-passwordless-fallback-in-bluebubbles-plugin
Read more
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