CVE-2026-33808

Impact@fastify/express v4.0.4 and earlier fails to normalize URLs before passing them to Express middleware when Fastify router normalization options are enabled. This allows complete bypass of path-scoped authentication middleware via duplicate slashes when ignoreDuplicateSlashes is enabled, or...

CVE-2026-33808 @fastify/express vulnerable to middleware authentication bypass via URL normalization gaps (duplicate slashes and semicolons)

Impact@fastify/express v4.0.4 and earlier fails to normalize URLs before passing them to Express middleware when Fastify router normalization options are enabled. This allows complete bypass of path-scoped authentication middleware via duplicate slashes when ignoreDuplicateSlashes is enabled, or...

OpenClaw affected by SSRF in optional Tlon (Urbit) extension authentication

Summary The optional Tlon Urbit extension previously accepted a user-provided base URL for authentication and used it to construct an outbound HTTP request, enabling server-side request forgery SSRF in affected deployments. Impact This only affects deployments that have installed and configured t...

tomcat: org.apache.tomcat/tomcat-catalina: Apache Tomcat: Directory traversal via rewrite with possible RCE

A directory traversal vulnerability in Apache Tomcat caused by improper URL normalization during request rewriting. When specific rewrite rules are used, an attacker could craft a malicious request to bypass access restrictions and reach protected directories such as /WEB-INF/ or /META-INF/. If...

GHSA-4MH3-H929-W968 File Browser has a Path-Based Access Control Bypass via Multiple Leading Slashes in URL

Summary An authenticated user can bypass the application's "Disallow" file path rules by modifying the request URL. By adding multiple slashes e.g., //private/ to the path, the authorization check fails to match the rule, while the underlying filesystem resolves the path correctly, granting...

MiracleLinux 4 : httpd24-1.1-19.AXS4, httpd24-httpd-2.4.25-9.AXS4.1, httpd24-nghttp2-1.7.1-8.AXS4 (AXSA:2019-4423:01)

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2019-4423:01 advisory. httpd: modsessioncookie does not respect expiry time CVE-2018-17199 httpd: modauthdigest: access control bypass due to race condition CVE-2019-0217...

MiracleLinux 7 : httpd-2.4.6-90.0.1.el7.AXS7 (AXSA:2019-4324:03)

The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2019-4324:03 advisory. httpd: modauthdigest: access control bypass due to race condition CVE-2019-0217 httpd: URL normalization inconsistency CVE-2019-0220 Tenable has...

CVE-2023-49799

nuxt-api-party is an open source module to proxy API requests. nuxt-api-party attempts to check if the user has passed an absolute URL to prevent the aforementioned attack. This has been recently changed to use the regular expression ^https?://, however this regular expression can be bypassed by ...

tomcat: org.apache.tomcat/tomcat-catalina: Apache Tomcat: Directory traversal via rewrite with possible RCE

A directory traversal vulnerability in Apache Tomcat caused by improper URL normalization during request rewriting. When specific rewrite rules are used, an attacker could craft a malicious request to bypass access restrictions and reach protected directories such as /WEB-INF/ or /META-INF/. If...

Better Auth's rou3 Dependency has Double-Slash Path Normalization which can Bypass disabledPaths Config and Rate Limits

Summary An issue in the underlying router library rou3 can cause /path and //path to be treated as identical routes. If your environment does not normalize incoming URLs e.g., by collapsing multiple slashes, this can allow bypasses of disabledPaths and path-based rate limits. Details Better Auth...

GHSA-X732-6J76-QMHM Better Auth's rou3 Dependency has Double-Slash Path Normalization which can Bypass disabledPaths Config and Rate Limits

Summary An issue in the underlying router library rou3 can cause /path and //path to be treated as identical routes. If your environment does not normalize incoming URLs e.g., by collapsing multiple slashes, this can allow bypasses of disabledPaths and path-based rate limits. Details Better Auth...

CLSA-2025-1765903038 tomcat: Fix of CVE-2025-55752

CVE-2025-55752: fix relative path traversal vulnerability by normalizing rewritten URLs before decoding to prevent bypassing security constraints and potential remote code execution via PUT requests...

tomcat: org.apache.tomcat/tomcat-catalina: Apache Tomcat: Directory traversal via rewrite with possible RCE

A directory traversal vulnerability in Apache Tomcat caused by improper URL normalization during request rewriting. When specific rewrite rules are used, an attacker could craft a malicious request to bypass access restrictions and reach protected directories such as /WEB-INF/ or /META-INF/. If...

EUVD-2022-2233

Malicious code in bioql PyPI...

CVE-2024-28246 KaTeX is missing normalization of the protocol in URLs allows bypassing forbidden protocols

KaTeX is a JavaScript library for TeX math rendering on the web. Code that uses KaTeX's trust option, specifically that provides a function to blacklist certain URL protocols, can be fooled by URLs in malicious inputs that use uppercase characters in the protocol. In particular, this can allow fo...

Path traversal in webpack-dev-middleware

Summary The webpack-dev-middleware middleware does not validate the supplied URL address sufficiently before returning the local file. It is possible to access any file on the developer's machine. Details The middleware can either work with the physical filesystem when reading the files or it can...

Apache httpd URL normalization inconsistency

A vulnerability was found in Apache HTTP Server 2.4.0 to 2.4.38. When the path component of a request URL contains multiple consecutive slashes '/', directives such as LocationMatch and RewriteRule must account for duplicates in regular expressions while other aspects of the servers processing wi...

Code injection

The urlnorm crate through 0.1.4 for Rust allows Regular Expression Denial of Service ReDos via a crafted URL to lib.rs...

Code injection

The git-url-parse crate through 0.4.4 for Rust allows Regular Expression Denial of Service ReDos via a crafted URL to normalizeurl in lib.rs, a similar issue to CVE-2023-32758 Python...

CVE-2023-2808 Lack of URL normalization allows rendering previews for disallowed domains

Mattermost fails to normalize UTF confusable characters when determining if a preview should be generated for a hyperlink, allowing an attacker to trigger link preview on a disallowed domain using a specially crafted link...