CVE Catalog

CVE-2026-49996

LowCVSS 3.7
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.24%

15th percentile - higher than 15% of all known CVEs

Summary

SecureDrop Client before 1.3.1 can be tricked by a malicious SecureDrop Server responding with cross-origin redirects, bypassing securedrop-proxy's origin limitation.

Risk Assessment

A malicious server can redirect the client to unauthorized resources, potentially leading to data leakage or compromise of communication confidentiality.

Recommendation

Upgrade to version 1.3.1, which contains the fix.

Related vulnerabilities

Original NVD description (English source)

SecureDrop Client is a desktop app for journalists to securely communicate with sources and handle submissions on the SecureDrop Workstation. Prior to version 1.3.1, a malicious SecureDrop Server could bypass securedrop-proxy's origin limitation by responding with cross-origin redirects. SecureDrop Server itself has multiple layers of built-in hardening, and is a dedicated physical machine exposed on the internet only via Tor hidden services for the Source and Journalist interfaces, and optionally via remote SSH access over another Tor hidden service. A newsroom's SecureDrop Workstation communicates only with its own dedicated SecureDrop Server. Version 1.3.1 fixes the issue.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS