CVE-2026-43981

Algernon is a small self-contained pure-Go web server. Prior to 1.17.6, in engine/luahandler.go, the sync.RWMutex protecting LoadCommonFunctions is released before L.Push and L.PCall execute. Since gopher-lua's LState is explicitly not goroutine-safe, concurrent requests race on the shared state...

CVE-2026-46430 Algernon: Auto-refresh SSE event server binds to all interfaces by default on Linux/macOS

Algernon is a small self-contained pure-Go web server. Prior to 1.17.7, the SSE event server bound to 0.0.0.0:5553 on Linux/macOS by default because the platform-dependent host default in engine/flags.go:39-46 set host = "" for non-Windows, and utils.JoinHostPort"", ":5553" resolves to ":5553"...

CVE-2026-45728

CVE-2026-45728 (Algernon) exposes server-side source on error when running in single-file mode. Prior to 1.17.7, invoking Algernon with a file path (not a dir) forces singleFileMode, which enables debugMode and renders PrettyError pages that reveal the absolute path and full contents of the error...

CVE-2026-45728 Algernon: Single-file mode unconditionally enables debug mode

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-2026-31868

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...

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...

CVE-2026-43982

Algernon is a small self-contained pure-Go web server. Prior to 1.17.6, uploadedFileSaveIn in lua/upload/upload.go uses filepath.Join with the caller-supplied directory but performs no boundary check after joining. A directory of ../../../tmp resolves cleanly to /tmp, outside the web root. This...

CVE-2026-43982

Algernon (a small Go web server) has a path-traversal risk in lua/upload/upload.go: uploadedFileSaveIn() joins a caller-supplied directory with filepath.Join() and performs no boundary check after joining. A path like ../../../tmp can resolve to /tmp, bypassing web-root constraints. The issue aff...

PT-2026-43297

Algernon is a small self-contained pure-Go web server. Prior to 1.17.6, in engine/luahandler.go, the sync.RWMutex protecting LoadCommonFunctions is released before L.Push and L.PCall execute. Since gopher-lua's LState is explicitly not goroutine-safe, concurrent requests race on the shared state...

algernon 路径遍历漏洞

Algernon is a web server developed by Alexander F. Rødseth. Versions of Algernon prior to 1.17.6 contained a path traversal vulnerability. This vulnerability stemmed from the uploadedFileSaveIn function in lua/upload/upload.go, which used filepath.Join to concatenate the directory provided by the...

algernon 竞争条件问题漏洞

Algernon is a web server developed by Alexander F. Rødseth. Versions of Algernon prior to 1.17.6 contained a race condition vulnerability. This vulnerability stemmed from the sync.RWMutex used in engine/luahandler.go to protect LoadCommonFunctions, which was released before L.Push and L.PCall...

algernon 安全漏洞

Algernon is a web server developed by Alexander F. Rødseth. Versions of Algernon prior to 1.17.7 contained a security vulnerability. This vulnerability stemmed from the process of traversing parent directories upwards during directory requests to find the handler.lua file. This could allow...

algernon 安全漏洞

Algernon is a web server developed by Alexander F. Rødseth. Versions of Algernon prior to 1.17.7 contained security vulnerabilities. These vulnerabilities stemmed from the forced activation of debugging mode in single-file mode, allowing the leakage of the file’s absolute path and complete byte...

algernon 安全漏洞

Algernon is a web server developed by Alexander F. Rødseth. Versions of Algernon prior to 1.17.7 contained a security vulnerability. This vulnerability stemmed from the hardcoded wildcard in the Access-Control-Allow-Origin header of the SSE event server, which could allow any third-party page to...

algernon 安全漏洞

Algernon is a web server developed by Alexander F. Rødseth. Versions of Algernon prior to 1.17.7 contained security vulnerabilities. These vulnerabilities stemmed from the SSE event server being bound to 0.0.0.0:5553 by default, which could allow unauthorized network access...

algernon 安全漏洞

Algernon is a web server developed by Alexander F. Rødseth. Versions of Algernon prior to 1.17.8 contained security vulnerabilities. These vulnerabilities stemmed from path traversal via the Host header when using the --domain option, potentially allowing arbitrary file reading, directory listing...