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CVE-2026-30230— Flare: Password‑Protected Thumbnail Bypass

Quick assessment

Affected
FlintSH Flare
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.

Flare是Zachary Lowery个人开发者的一个文件共享平台。 Flare 1.7.2之前版本存在安全漏洞，该漏洞源于缩略图端点未验证受密码保护文件的密码，可能导致无需密码即可访问缩略图。

AI Predicted 5.3 Difficulty: Easy EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-30230

Vulnerability Information
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Vulnerability Title
Flare: Password‑Protected Thumbnail Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to version 1.7.2, the thumbnail endpoint does not validate the password for password‑protected files. It checks ownership/admin for private files but skips password verification, allowing thumbnail access without the password. This issue has been patched in version 1.7.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Flare 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flare是Zachary Lowery个人开发者的一个文件共享平台。 Flare 1.7.2之前版本存在安全漏洞，该漏洞源于缩略图端点未验证受密码保护文件的密码，可能导致无需密码即可访问缩略图。
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
FlintSH Flare < 1.7.2 -

II. Public POCs for CVE-2026-30230

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III. Intelligence Information for CVE-2026-30230

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Vendor Advisories for CVE-2026-30230 (1)

IV. Related Vulnerabilities

Same product: Flare
Same vendor: FlintSH
Same weakness: CWE-639

V. Comments for CVE-2026-30230

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