CVE-2026-54286

CVE-2026-54286 concerns Hono’s path traversal in the Windows environment via encoded backslash (%5C) in the request path. A prior issue (pre-4.12.25) causes %5C to decode to a backslash, which Windows path resolution treats as a separator, allowing a crafted URL segment (e.g., admin\secret.txt) t...

CVE-2026-54286

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on Windows hosts, an encoded backslash %5C in the request path decodes to , which the Windows path resolver treats as a separator. serve-static then resolves a single URL segment such as...

Directory Traversal

Overview hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Directory Traversal via the serve-static method on Windows hosts when an encoded backslash %5C in the request path is decoded to , which is treated as a separator by the Windows path...

hono: Path traversal in `serve-static` on Windows via encoded backslash (`%5C`)

Summary On Windows hosts, an encoded backslash %5C in the request path decodes to , which the Windows path resolver treats as a separator. serve-static then resolves a single URL segment such as admin\secret.txt into a nested file under the root and serves it, letting an attacker read static file...

NPM: hono: Path traversal in `serve-static` on Windows via encoded backslash (`%5C`)

NPM: hono: Path traversal in serve-static on Windows via encoded backslash %5C vulnerability discovered by ? in WordPress Npm hono versions 4.12.25...

PT-2026-49733

Name of the Vulnerable Software and Affected Versions serve-static affected versions not specified Description On Windows hosts, an encoded backslash %5C in the request path decodes to , which the Windows path resolver treats as a separator. Because the router splits paths only on /, a request su...

CVE-2026-39406

@hono/node-server allows running the Hono application on Node.js. Prior to 1.19.13, a path handling inconsistency in serveStatic allows protected static files to be accessed by using repeated slashes // in the request path. When route-based middleware e.g., /admin/ is used for authorization, the...

CVE-2026-39407

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.12, a path handling inconsistency in serveStatic allows protected static files to be accessed by using repeated slashes // in the request path. When route-based middleware e.g., /admin/ is used for...

CVE-2026-39406

@hono/node-server allows running the Hono application on Node.js. Prior to 1.19.13, a path handling inconsistency in serveStatic allows protected static files to be accessed by using repeated slashes // in the request path. When route-based middleware e.g., /admin/ is used for authorization, the...

Directory Traversal

Overview hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Directory Traversal via the serveStatic function. An attacker can access sensitive static files intended to be protected by route-based middleware by crafting request paths with repeated...

EUVD-2026-20493

Hono: Middleware bypass via repeated slashes in serveStatic...

Hono: Middleware bypass via repeated slashes in serveStatic

Summary A path handling inconsistency in serveStatic allows protected static files to be accessed by using repeated slashes // in the request path. When route-based middleware e.g., /admin/ is used for authorization, the router may not match paths containing repeated slashes, while serveStatic...

Directory Traversal

Overview @hono/node-server is a Node.js Adapter for Hono Affected versions of this package are vulnerable to Directory Traversal due to inconsistent handling of repeated slashes in the serveStatic process. An attacker can access sensitive static files that are intended to be protected by bypassin...

EUVD-2026-20491

@hono/node-server: Middleware bypass via repeated slashes in serveStatic...

@hono/node-server: Middleware bypass via repeated slashes in serveStatic

Summary A path handling inconsistency in serveStatic allows protected static files to be accessed by using repeated slashes // in the request path. When route-based middleware e.g., /admin/ is used for authorization, the router may not match paths containing repeated slashes, while serveStatic...

PT-2026-31281

Summary A path handling inconsistency in serveStatic allows protected static files to be accessed by using repeated slashes // in the request path. When route-based middleware e.g., /admin/ is used for authorization, the router may not match paths containing repeated slashes, while serveStatic...

GHSA-H7CJ-J2VV-QW8R Wisp Vulnerable to Path Traversal

Summary wisp.servestatic is vulnerable to arbitrary file read via percent-encoded path traversal %2e%2e. The directory traversal sanitization runs before percent-decoding, allowing encoded .. sequences to bypass the filter. An unauthenticated attacker can read any file readable by the application...

Wisp Vulnerable to Path Traversal

Summary wisp.servestatic is vulnerable to arbitrary file read via percent-encoded path traversal %2e%2e. The directory traversal sanitization runs before percent-decoding, allowing encoded .. sequences to bypass the filter. An unauthenticated attacker can read any file readable by the application...

CVE-2026-28807

Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' vulnerability in gleam-wisp wisp allows arbitrary file read via percent-encoded path traversal. The wisp.servestatic function is vulnerable to path traversal because sanitization runs before percent-decoding. The encoded...

CVE-2026-28807

Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' vulnerability in gleam-wisp wisp allows arbitrary file read via percent-encoded path traversal. The wisp.servestatic function is vulnerable to path traversal because sanitization runs before percent-decoding. The encoded...