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CVE-2026-30829— Checkmate: Unauthenticated Access to Unpublished Status Page

Quick assessment

Affected
bluewave-labs Checkmate
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.

Checkmate是BlueWave开源的一个开源、自托管的工具，旨在通过精美的可视化实时跟踪和监控服务器硬件、正常运行时间、响应时间和事件。 Checkmate 3.4.0之前版本存在信息泄露漏洞，该漏洞源于GET /api/v1/status-page/:url端点未强制执行身份验证或验证状态页是否已发布，可能导致未经验证的用户访问未发布状态页及其内部数据。

CVSS 5.3 · Medium EPSS 0.39% · P32

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2026-30829

Vulnerability Information
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Vulnerability Title
Checkmate: Unauthenticated Access to Unpublished Status Page
Source: CVE Program / CVE List V5
Vulnerability Description
Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. Prior to version 3.4.0, an unauthenticated information disclosure vulnerability exists in the GET /api/v1/status-page/:url endpoint. The endpoint does not enforce authentication or verify whether a status page is published before returning full status page details. As a result, unpublished status pages and their associated internal data are accessible to any unauthenticated user via direct API requests. This issue has been patched in version 3.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Checkmate 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Checkmate是BlueWave开源的一个开源、自托管的工具，旨在通过精美的可视化实时跟踪和监控服务器硬件、正常运行时间、响应时间和事件。 Checkmate 3.4.0之前版本存在信息泄露漏洞，该漏洞源于GET /api/v1/status-page/:url端点未强制执行身份验证或验证状态页是否已发布，可能导致未经验证的用户访问未发布状态页及其内部数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
bluewave-labs Checkmate < 3.4.0 -

II. Public POCs for CVE-2026-30829

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III. Intelligence Information for CVE-2026-30829

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Vendor Advisories for CVE-2026-30829 (1)

IV. Related Vulnerabilities

Same product: Checkmate
Same vendor: bluewave-labs
Same weakness: CWE-200

V. Comments for CVE-2026-30829

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