CVE-2026-52792 Algernon: Server-side script source disclosure on Windows via NTFS filename

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...

GO-2026-5903 Algernon vulnerable to server-side script source disclosure on Windows via NTFS filename in github.com/xyproto/algernon

Algernon vulnerable to server-side script source disclosure on Windows via NTFS filename in github.com/xyproto/algernon...

GHSA-MM6C-5J6X-HQ8M Algernon vulnerable to server-side script source disclosure on Windows via NTFS filename

Summary Algernon selects its file handler from filepath.Ext engine/handlers.go:134, which does not treat the NTFS-equivalent names x.lua::$DATA, x.lua., or x.lua as .lua. On Windows, an unauthenticated client appends one of these suffixes to any server-side script on a public path and receives it...

USN-6678-1 libgit2 vulnerabilities

It was discovered that libgit2 mishandled equivalent filenames on NTFS partitions. If a user or automated system were tricked into cloning a specially crafted repository, an attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.0...