CVE-2026-35465— SecureDrop Client has path injection in read_gzip_header_filename()
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I. Basic Information for CVE-2026-35465
Vulnerability Information
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Vulnerability Title
SecureDrop Client has path injection in read_gzip_header_filename()
Source: NVD (National Vulnerability Database)
Vulnerability Description
SecureDrop Client is a desktop app for journalists to securely communicate with sources and handle submissions on the SecureDrop Workstation. In versions 0.17.4 and below, a compromised SecureDrop Server can achieve code execution on the Client's virtual machine (sd-app) by exploiting improper filename validation in gzip archive extraction, which permits absolute paths and enables overwriting critical files like the SQLite database. Exploitation requires prior compromise of the dedicated SecureDrop Server, which itself is hardened and only accessible via Tor hidden services. Despite the high attack complexity, the vulnerability is rated High severity due to its significant impact on confidentiality, integrity, and availability of decrypted source submissions. This issue is similar to CVE-2025-24888 but occurs through a different code path, and a more robust fix has been implemented in the replacement SecureDrop Inbox codebase. The issue has been fixed in version 0.17.5.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
文件名或路径的外部可控制
Source: NVD (National Vulnerability Database)
Vulnerability Title
securedrop-client 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
securedrop-client是Freedom of the Press Foundation开源的一个应用程序。 securedrop-client 0.17.4及之前版本存在安全漏洞，该漏洞源于gzip存档提取过程中文件名验证不当，允许绝对路径并覆盖关键文件，可能导致代码执行。
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 |
|---|---|---|---|---|
| freedomofpress | securedrop-client | < 0.17.5 | - |
II. Public POCs for CVE-2026-35465
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
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