CVE-2026-59730 @astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect

Astro is a web framework for content-driven websites. In versions 8.1.0 through 11.0.1, when trailingSlash: 'always' is configured, the @astrojs/node standalone server's static file handler appends a trailing slash to request paths and issues a 301 redirect. Paths beginning with /\ slash-backslas...

PT-2026-66777

Name of the Vulnerable Software and Affected Versions pgAdmin 4 versions prior to 9.17-1.1 Description The Import/Export Data functionality fails to properly neutralize special elements, which allows a remote attacker to execute arbitrary operating system commands on the server. Recommendations...

Open Redirect

React Router is vulnerable to Open Redirect. The vulnerability is due to improper handling of backslashes in and useNavigate, allowing attackers to bypass redirect validation and redirect users to attacker-controlled websites...

GHSA-WRJC-X8RR-H8H6 React Router: Open redirect via backslash in <Link> and useNavigate (CVE-2025-68470 bypass)

This is a follow up to CVE-2025-68470. React Router was alerted to certain scenarios in which the fix there was incomplete so there still existed some scenarios where attacker supplied paths passed to navigation mechanisms could result in unexpected external navigations...

React Router: Open redirect via backslash in <Link> and useNavigate (CVE-2025-68470 bypass)

This is a follow up to CVE-2025-68470. React Router was alerted to certain scenarios in which the fix there was incomplete so there still existed some scenarios where attacker supplied paths passed to navigation mechanisms could result in unexpected external navigations...

Open Redirect

Overview Affected versions of this package are vulnerable to Open Redirect via the navigation mechanisms when attacker-supplied paths containing a backslash are processed. An attacker can redirect users to unintended external sites by crafting malicious links or inputs. Remediation Upgrade...

NPM: React Router: Open redirect via backslash in <Link> and useNavigate (CVE-2025-68470 bypass)

NPM: React Router: Open redirect via backslash in and useNavigate CVE-2025-68470 bypass vulnerability discovered by ? in WordPress Npm react-router versions = 6.0.0, 7.18.0...

Open Redirect

Overview Affected versions of this package are vulnerable to Open Redirect via the navigation mechanisms when attacker-supplied paths containing a backslash are processed. An attacker can redirect users to unintended external sites by crafting malicious links or inputs. Remediation Upgrade...

GO-2026-6026 File Browser: Archive builder turns backslash filenames into path traversal (zip-slip) in github.com/filebrowser/filebrowser

File Browser: Archive builder turns backslash filenames into path traversal zip-slip in github.com/filebrowser/filebrowser...

fast-uri vulnerable to host confusion via literal backslash authority delimiter

Impact fast-uri v4.1.0 and earlier do not treat a literal backslash U+005C as an authority delimiter. Node's native WHATWG URL used by fetch, undici, and Node's http/https clients normalizes \ to / for special schemes http, https, ws, wss, ftp, file, so the two parsers extract different hosts fro...

NPM: fast-uri vulnerable to host confusion via literal backslash authority delimiter

NPM: fast-uri vulnerable to host confusion via literal backslash authority delimiter vulnerability discovered by ? in WordPress Npm fast-uri versions = 2.3.1, = 2.4.2...

EUVD-2026-45551

fast-uri vulnerable to host confusion via literal backslash authority delimiter...

GHSA-V2HH-GCRM-F6HX fast-uri vulnerable to host confusion via literal backslash authority delimiter

Impact fast-uri v4.1.0 and earlier do not treat a literal backslash U+005C as an authority delimiter. Node's native WHATWG URL used by fetch, undici, and Node's http/https clients normalizes \ to / for special schemes http, https, ws, wss, ftp, file, so the two parsers extract different hosts fro...

Node.js Adapter for Hono: Path traversal in `serve-static` on Windows via encoded backslash (`%5C`)

The same as the hono core 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...

Directory Traversal

Overview @hono/node-server is a Node.js Adapter for Hono Affected versions of this package are vulnerable to Directory Traversal in the serve-static on Windows hosts when an encoded backslash %5C in the request path is decoded to , which the Windows path resolver treats as a separator. This allow...

GHSA-FRVP-7C67-39W9 Node.js Adapter for Hono: Path traversal in `serve-static` on Windows via encoded backslash (`%5C`)

The same as the hono core 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...

SUSE CVE-2026-16221

Impact: fast-uri versions from 2.3.1 through 4.1.0 including the 3.x line up to 3.1.3 and the 2.x line up to 2.4.2 do not treat a literal backslash character U+005C as an authority delimiter. Node's native WHATWG URL parser, used by fetch, undici, and Node's http and https clients, normalizes the...

GHSA-R557-WFFQ-WVRC @astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect

Impact With trailingSlash: 'always' configured, the @astrojs/node standalone server's static file handler appends a trailing slash to request paths and issues a 301 redirect. Paths beginning with /\ slash-backslash were not recognized as internal paths, so the handler would echo the raw path back...

@astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect

Impact With trailingSlash: 'always' configured, the @astrojs/node standalone server's static file handler appends a trailing slash to request paths and issues a 301 redirect. Paths beginning with /\ slash-backslash were not recognized as internal paths, so the handler would echo the raw path back...

GHSA-83XP-526H-J3WW File Browser: Archive builder turns backslash filenames into path traversal (zip-slip)

Summary The fix for GHSA-gxjx-7m74-hcq8 / CVE-2026-54093 shipped in v2.63.6 added a strings.ReplaceAllnameInArchive, "\", "/" step to the archive builder; this was the advisory's recommended "Primary Fix." On a Linux host a backslash is a legal, non-separator filename character, so replacing it...