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CVE-2026-34376— PdfDing: Password-protected share bypass via direct serve endpoint

CVSS 7.5 · High EPSS 0.05% · P15
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I. Basic Information for CVE-2026-34376

Vulnerability Information
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Vulnerability Title
PdfDing: Password-protected share bypass via direct serve endpoint
Source: NVD (National Vulnerability Database)
Vulnerability Description
PdfDing is a selfhosted PDF manager, viewer and editor offering a seamless user experience on multiple devices. Prior to version 1.7.0, an access-control vulnerability allows unauthenticated users to retrieve password-protected shared PDFs by directly calling the file-serving endpoint without completing the password verification flow. This results in unauthorized access to confidential documents that users expected to be protected by a shared-link password. This issue has been patched in version 1.7.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
PdfDing 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PdfDing是mrmn个人开发者的一个自托管的PDF管理、查看和编辑工具。 PdfDing 1.7.0之前版本存在安全漏洞，该漏洞源于存在访问控制漏洞，未经验证的用户可通过直接调用文件服务端点绕过密码验证流程，检索受密码保护的共享PDF，可能导致未经授权访问机密文档。
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

VendorProductAffected VersionsCPESubscribe
mrmn2PdfDing < 1.7.0 -

II. Public POCs for CVE-2026-34376

#POC DescriptionSource LinkShenlong Link
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Qwen3.6-35B-A3B · 6660 chars
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III. Intelligence Information for CVE-2026-34376

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IV. Related Vulnerabilities

Same product: PdfDing
Same vendor: mrmn2
Same weakness: CWE-863

V. Comments for CVE-2026-34376

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