CVE-2026-52792: Improper Handling of Windows ::DATA Alternate Data Stream

Algernon is a small self-contained pure-Go web server. Prior to 1.17.9, Algernon on Windows selects a file handler in engine/handlers.go by calling filepath.Ext without first rejecting NTFS-equivalent names such as x.lua::$DATA, x.lua., and x.lua . An unauthenticated client can append one of thes...

CVE-2025-30038: Exposure of Sensitive Information Through Metadata

The vulnerability consists of a session ID leak when saving a file downloaded from CGM CLININET. The identifier is exposed through a built-in Windows security feature that stores additional metadata in an NTFS alternate data stream ADS for all files downloaded from potentially untrusted sources...