Auth bypass in Openclaw
CVE-2026-32896
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- Openclaw — versions 0, 2026.2.21
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-5mx2-2mgw-x8rm (vendor-advisory, Vendor Advisory, third-party-advisory)
- github.com/openclaw/openclaw/commit/6b2f2811dc623e5faaf2f76afaa9279637174590 (Patch, patch)
- github.com/openclaw/openclaw/commit/283029bdea23164ab7482b320cb420d1b90df806 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-unauthenticated-webhook-access-via-passwo… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-32896?
- CVE-2026-32896 is a medium-severity vulnerability in Openclaw, classified under Missing Authentication for Critical Function. CVSS score: 4.8/10. Published 2026-03-21.
- How severe is CVE-2026-32896?
- Medium severity. CVSS v3 base score is 4.8 out of 10.