Auth bypass in Openclaw Whatsapp
CVE-2026-100532
@openclaw/whatsapp (npm) before 2026.8.1 exposes the WhatsApp login tool through the generic channel-tool path without preserving the originating sender's owner status, so the owner-only tool boundary is not enforced. An admitted non-owner sender able to steer the tool can request a forced login and receive a new QR code for a configured account, disconnecting the Gateway's WhatsApp account and causing loss of availability; full account relinking additionally requires the attacker to scan the returned QR code with another phone. The issue affects the owner-only tool boundary rather than WhatsApp transport authentication. Fixed in 2026.8.1.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (19.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-9m4p-cqp4-jppq) (vendor-advisory)
- VulnCheck Advisory: openclaw WhatsApp before 2026.8.1 Authentication Bypass (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100532?
- CVE-2026-100532 is a high-severity vulnerability in Openclaw Whatsapp, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-09-26.
- How severe is CVE-2026-100532?
- High severity. CVSS v3 base score is 8.1 out of 10.