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CVE-2026-40595— Chartbrew: Incorrect Access Control in public chart and export routes via missing onReport and SharePolicy checks

Quick assessment

Affected
chartbrew chartbrew
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.

chartbrew是Chartbrew开源的一个数据可视化与仪表盘构建工具。 Chartbrew 4.9.0版本存在访问控制错误漏洞，该漏洞源于公开图表检索和导出路由仅验证项目级公共访问权限，未验证目标图表是否允许在公共报告中或共享策略是否允许公共访问，可能导致未经身份验证的攻击者读取或导出故意隐藏的图表数据。

CVSS 7.5 · High EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
chartbrew chartbrew = 4.9.0 affected
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I. Basic Information for CVE-2026-40595

Vulnerability Information
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Vulnerability Title
Chartbrew: Incorrect Access Control in public chart and export routes via missing onReport and SharePolicy checks
Source: CVE Program / CVE List V5
Vulnerability Description
Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. In version 4.9.0, Chartbrew exposes public chart retrieval and export routes that only verify project-level public access and, for exports, a team-level export toggle. The routes do not verify whether the target chart is actually allowed on the public report or whether the governing SharePolicy permits public access. An unauthenticated attacker who knows a chart identifier in a public project can read or export chart data for charts that were intentionally hidden from the report. This issue has been patched in version 5.0.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
chartbrew 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
chartbrew是Chartbrew开源的一个数据可视化与仪表盘构建工具。 Chartbrew 4.9.0版本存在访问控制错误漏洞，该漏洞源于公开图表检索和导出路由仅验证项目级公共访问权限，未验证目标图表是否允许在公共报告中或共享策略是否允许公共访问，可能导致未经身份验证的攻击者读取或导出故意隐藏的图表数据。
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
chartbrew chartbrew = 4.9.0 -

II. Public POCs for CVE-2026-40595

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III. Intelligence Information for CVE-2026-40595

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Patches & Fixes for CVE-2026-40595 (1)

Vendor Advisories for CVE-2026-40595 (1)

Same Patch Batch · chartbrew · 2026-04-30 · 6 CVEs total

CVE-2026-40600 8.1 HIGH Chartbrew: Incorrect Access Control in project share policy routes via unbound policy_id
CVE-2026-40904 8.1 HIGH Chartbrew: Incorrect Access Control in dataset and dataRequest routes via team-scoped perm
CVE-2026-40601 7.5 HIGH Chartbrew: Missing Authorization in /api/chart/:chart_id/query via team-level refresh togg
CVE-2026-35514 6.5 MEDIUM Unauthenticated Account Registration via /user/invited Bypasses All Signup Restrictions in
CVE-2026-40603 6.5 MEDIUM Chartbrew: Incorrect Access Control in /api/project/dashboard/:brewName via same-team over

IV. Related Vulnerabilities

Same product: chartbrew
Same vendor: chartbrew
Same weakness: CWE-284

V. Comments for CVE-2026-40595

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