GHSA-VFP3-V2GW-7WFQ Echo: Encoded slash (%2F) bypasses route-level protection and exposes static files

Summary Echo's router and static file handler disagree on URL path decoding. The router matches routes using the raw encoded path preserving %2F as-is, while StaticDirectoryHandler unescapes %2F to / before resolving filesystem paths. This allows an attacker to bypass route-level access controls...

EUVD-2026-39800

Echo: Encoded slash %2F bypasses route-level protection and exposes static files...

Important: Red Hat Security Advisory: osbuild-composer security update

An update for osbuild-composer is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

github.com/labstack/echo: Echo: Unauthorized Information Disclosure via URL Path Decoding Discrepancy

A flaw was found in Echo, a Go web framework. An attacker can exploit a disagreement in URL path decoding between the router and the static file handler. The router processes raw encoded paths, while the static file handler unescapes encoded forward slashes. This allows an attacker to bypass...

CVE-2026-55677

A flaw was found in Echo, a Go web framework. An attacker can exploit a disagreement in URL path decoding between the router and the static file handler. The router processes raw encoded paths, while the static file handler unescapes encoded forward slashes. This allows an attacker to bypass...

CVE-2026-59731

Astro is a web framework for content-driven websites. Version 6.4.7 performs authorization decisions on a partially decoded pathname after reaching the iterative URL decoder limit, while later rewrite route matching performs an additional decodeURI operation and can resolve the request to a...

Linux Distros Unpatched Vulnerability : CVE-2026-55677

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, Echo's router and static file handler disagree on URL path decoding. The router matches routes using the...

CVE-2026-55677

Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, Echo's router and static file handler disagree on URL path decoding. The router matches routes using the raw encoded path preserving %2F as-is, while StaticDirectoryHandler unescapes %2F to / before resolving filesystem paths. This allows an...

UBUNTU-CVE-2026-55677

Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, Echo's router and static file handler disagree on URL path decoding. The router matches routes using the raw encoded path preserving %2F as-is, while StaticDirectoryHandler unescapes %2F to / before resolving filesystem paths. This allows an...

CVE-2026-55677

Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, Echo's router and static file handler disagree on URL path decoding. The router matches routes using the raw encoded path preserving %2F as-is, while StaticDirectoryHandler unescapes %2F to / before resolving filesystem paths. This allows an...

PT-2026-52855

Name of the Vulnerable Software and Affected Versions Echo versions prior to 4.15.3 Echo versions prior to 5.2.0 Description A discrepancy exists between the router and the static file handler regarding URL path decoding. The router matches routes using the raw encoded path, preserving %2F as-is,...

Linux Distros Unpatched Vulnerability : CVE-2026-6321

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fast-uri decoded percent-encoded path separators and dot segments before applying dot-segment removal in its normalize and equal functions. Encoded path data wa...

Rack:: Static header_rules bypass via URL-encoded paths

Summary Rack::Staticapplicablerules evaluates several headerrules types against the raw URL-encoded PATHINFO, while the underlying file-serving path is decoded before the file is served. As a result, a request for a URL-encoded variant of a static path can serve the same file without the headers...

CVE-2026-34786 Rack: Rack::Static header_rules bypass via URL-encoded paths

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Staticapplicablerules evaluates several headerrules types against the raw URL-encoded PATHINFO, while the underlying file-serving path is decoded before the file is served. As a result, a request for a...

Fedora 44 : cpp-httplib (2026-03599f0b32)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-03599f0b32 advisory. Update to 0.38.0 rhbz2447261 - Filename sanitization for path traversal prevention Added sanitizefilename to prevent path traversal attacks via malicious...

Fedora 43 : cpp-httplib (2026-e76feaf213)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-e76feaf213 advisory. Update to 0.38.0 rhbz2447261 - Filename sanitization for path traversal prevention Added sanitizefilename to prevent path traversal attacks via malicious...

GHSA-WC8C-QW6V-H7F6 @hono/node-server has authorization bypass for protected static paths via encoded slashes in Serve Static Middleware

Summary When using @hono/node-server's static file serving together with route-based middleware protections e.g. protecting /admin/, inconsistent URL decoding can allow protected static resources to be accessed without authorization. In particular, paths containing encoded slashes %2F may be...

CVE-2025-50900

An issue was discovered in getrebuild/rebuild 4.0.4. The affected source code class is com.rebuild.web.RebuildWebInterceptor, and the affected function is preHandle In the filter code, use CodecUtils.urlDecoderequest.getRequestURI to obtain the URL-decoded request path, and then determine whether...

Linux Distros Unpatched Vulnerability : CVE-2024-6162

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises becau...

The vulnerability of the AjpRequestParser class in the ajp-listener component of the Undertow web server allows a attacker to trigger a service failure.

The vulnerability of the AjpRequestParser class in the ajp-listener component of the Undertow web server is related to an uncontrolled resource consumption due to incorrect decoding of request paths. Exploiting this vulnerability can allow a malicious actor to cause service failures...