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CVE-2026-91160— OpenWA: A read-only API key can receive a session pairing QR over the WebSocket event stream

Quick assessment

Affected
rmyndharis OpenWA
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenWA 是一款免费的、开源的、自托管的 WhatsApp API 网关。在 0.23.5 版本之前，/events WebSocket 网关会向通过事件名称或任意通配符订阅形式进行订阅的 VIEWER 类型的 API 密钥（API Key）发送 session.qr 事件，而通过 GET /api/sessions/{sessionId}/qr 接口获取二维码本应要求调用者具备 OPERATOR 角色权限。当某个允许使用的会话处于待配对状态时，该暴露的 QR 码允许密钥持有者将外部设备绑定到 WhatsApp

CVSS 8.2 · High EPSS 0.25% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
rmyndharis OpenWA < 0.23.5 affected
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I. Basic Information for CVE-2026-91160

Vulnerability Information
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Vulnerability Title
OpenWA: A read-only API key can receive a session pairing QR over the WebSocket event stream
Source: CVE Program / CVE List V5
Vulnerability Description
OpenWA is a free, open source, self-hosted WhatsApp API gateway. Prior to 0.23.5, the /events WebSocket gateway delivers the session.qr event to a VIEWER API key that subscribes by event name or through either wildcard subscription form, even though GET /api/sessions/{sessionId}/qr requires the OPERATOR role. When an allowed session is waiting to be paired, the exposed QR lets the key holder link an external device to the WhatsApp account and then read and send messages outside OpenWA and its audit trail. Keys restricted through allowedSessions remain limited to those sessions, and deployments that issue only OPERATOR or ADMIN keys are not affected. This issue is fixed in version 0.23.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
rmyndharis OpenWA < 0.23.5 -

II. Public POCs for CVE-2026-91160

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III. Intelligence Information for CVE-2026-91160

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Patches & Fixes for CVE-2026-91160 (3)

Vendor Advisories for CVE-2026-91160 (1)

Other References for CVE-2026-91160 (1)

IV. Related Vulnerabilities

Same product: OpenWA
Same vendor: rmyndharis
Same weakness: CWE-862

V. Comments for CVE-2026-91160

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