SUSE CVE-2026-45721

Algernon is a small self-contained pure-Go web server. Prior to 1.17.7, when Algernon is asked for any URL path that resolves to a directory without an index file, DirPage walks upward through parent directories - past the configured server root - looking for a file named handler.lua to execute a...

SUSE CVE-2026-45728

Algernon is a small self-contained pure-Go web server. Prior to 1.17.7, when Algernon is invoked with a single file path instead of a directory, singleFileMode is set to true and debugMode is forcibly enabled. debugMode activates the PrettyError renderer, which on any Lua or template error respon...

PT-2026-55405

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...

CVE-2026-45728

Algernon is a small self-contained pure-Go web server. Prior to 1.17.7, when Algernon is invoked with a single file path instead of a directory, singleFileMode is set to true and debugMode is forcibly enabled. debugMode activates the PrettyError renderer, which on any Lua or template error respon...

Path Traversal

github.com/xyproto/algernon is vulnerable to Path Traversal. The vulnerability is due to DirPage traversing parent directories beyond the configured server root while searching for a handler.lua file, which allows an attacker who can place a malicious handler.lua in an ancestor directory to achie...

CVE-2026-45728

Algernon is a small self-contained pure-Go web server. Prior to 1.17.7, when Algernon is invoked with a single file path instead of a directory, singleFileMode is set to true and debugMode is forcibly enabled. debugMode activates the PrettyError renderer, which on any Lua or template error respon...

EUVD-2026-31867

Algernon is a small self-contained pure-Go web server. Prior to 1.17.7, when Algernon is asked for any URL path that resolves to a directory without an index file, DirPage walks upward through parent directories — past the configured server root — looking for a file named handler.lua to execute a...

CVE-2025-65754

Cross Site Scripting vulnerability in Algernon v1.17.4 allows attackers to execute arbitrary code via injecting a crafted payload into a filename...

CVE-2023-26131

All versions of the package github.com/xyproto/algernon/engine; all versions of the package github.com/xyproto/algernon/themes are vulnerable to Cross-site Scripting XSS via the themes.NoPagefilename, theme function due to improper user input sanitization. Exploiting this vulnerability is possibl...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the themes.NoPagefilename, theme function due to improper user input sanitization. Exploiting this vulnerability is possible when a file/resource is not found. PoC bash go install...