CVE-2026-109955

The Hono web framework (versions 4.12.4 before 4.13.11 ) is vulnerable to a middleware bypass in the serveStatic component. The root cause is double path decoding , where attackers can use malformed percent-encoded paths to bypass prefix middleware. This allows unauthenticated attackers to access...

PT-2026-111550

Name of the Vulnerable Software and Affected Versions Hono versions 4.12.4 through 4.13.10 Description A middleware bypass exists in the serveStatic function. Unauthenticated attackers can bypass prefix middleware by using double path decoding, sending malformed percent-encoded paths that the...

CVE-2026-109955: Double Decoding of the Same Data

Hono from 4.12.4 before 4.13.11 contains a middleware bypass vulnerability in serveStatic that allows unauthenticated attackers to skip prefix middleware by exploiting double path decoding. Attackers can send malformed percent-encoded paths that the router matches in encoded form, reaching static...

github.com/getkin/kin-openapi: kin-openapi: Authentication bypass via URL path decoding discrepancy

A flaw was found in kin-openapi. An unauthenticated remote attacker can bypass authentication checks on protected routes by sending requests containing encoded path separators. This issue occurs because the request validation handler inspects the decoded URL path, while certain downstream routers...

AlmaLinux 9.2 [TuxCare] Security Update: osbuild-composer / osbuild-composer-core / etc (ALMALINUX9.2:CLSA-2026:1790972556)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1790972556 advisory. - 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...

Rocky Linux 9.6 [TuxCare] Security Update: osbuild-composer / osbuild-composer-core / osbuild-composer-tests / etc (ALMALINUX9.6:CLSA-2026:1790266264)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790266264 advisory. - 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...

AlmaLinux 9.6 [TuxCare] Security Update: osbuild-composer / osbuild-composer-core / osbuild-composer-tests / etc (ALMALINUX9.6:CLSA-2026:1790266264)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790266264 advisory. - 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...

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...

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...

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...

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

An update for osbuild-composer is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. 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 ratin...

EUVD-2026-39800

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

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...

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...

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...

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...

GHSA-VJ59-8HWV-XXMV Astro: Authorization Bypass via Decode Iteration Limit and Rewrite Path Canonicalization Mismatch

Astro 6.4.7 Authorization Bypass via Decode Iteration Limit and Rewrite Path Canonicalization Mismatch Summary Astro 6.4.7 appears to reintroduce a middleware authorization bypass pattern when a request path is encoded more deeply than the newly introduced iterative URL decoder's maximum decoding...

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...