io.netty/netty-codec-http: Netty: Security control bypass allows unauthorized requests via null origin header

A flaw was found in Netty, a network application framework. A remote attacker can bypass security controls in the CorsHandler component by sending a specially crafted request with a null origin header. This bypasses the intended access restrictions, allowing unauthorized requests to reach the...

Netty: Security Control Bypass via CORS Short-Circuit Failure

Summary Netty's CorsHandler provides a shortCircuit configuration designed to reject unauthorized cross-origin requests immediately, acting as a security control before requests reach the application. However, due to a logical operator error in the origin evaluation process, this protection can b...

Incorrect Authorization

Overview io.netty:netty-codec-http is a network application framework for rapid development of maintainable high performance protocol servers & clients. Affected versions of this package are vulnerable to Incorrect Authorization in the CorsHandler. An attacker can gain unauthorized access to...

PT-2026-62421

Name of the Vulnerable Software and Affected Versions Netty versions 4.1.0.Final through 4.1.135.Final Netty versions 4.2.0.Final through 4.2.15.Final Description A security control bypass exists during the origin evaluation process. The CorsHandler includes a shortCircuit configuration intended ...

EUVD-2022-3267

Malicious code in bioql PyPI...

EUVD-2025-1995

Malicious code in bioql PyPI...

EUVD-2022-7663

Malicious code in bioql PyPI...

Go CORS handler 安全漏洞

Go CORS handler is a configurable handler for handling CORS requests by the individual developer Olivier Poitrey. A security vulnerability exists in Go CORS handler that stems from a potential over-allocation of heap when handling malicious preflight requests, which could lead to a denial of...

CVE-2025-5320

A vulnerability classified as problematic has been found in gradio-app gradio up to 5.29.1. This affects the function isvalidorigin of the component CORS Handler. The manipulation of the argument localhostaliases leads to erweiterte Rechte. It is possible to initiate the attack remotely. The...

CVE-2025-5320 gradio-app gradio CORS is_valid_origin privilege escalation

A vulnerability classified as problematic has been found in gradio-app gradio up to 5.29.1. This affects the function isvalidorigin of the component CORS Handler. The manipulation of the argument localhostaliases leads to erweiterte Rechte. It is possible to initiate the attack remotely. The...

CVE-2025-5320

CVE-2025-5320 affects gradio-app/gradio up to version 5.29.1. The vulnerability lies in the CORS Handler’s is_valid_origin function, where manipulating the localhost_aliases argument can lead to an origin validation error and potential privilege escalation. Exploitation is described as remote wit...

CVE-2025-5320 gradio-app gradio CORS is_valid_origin privilege escalation

A vulnerability classified as problematic has been found in gradio-app gradio up to 5.29.1. This affects the function isvalidorigin of the component CORS Handler. The manipulation of the argument localhostaliases leads to erweiterte Rechte. It is possible to initiate the attack remotely. The...

PT-2025-23161

Name of the Vulnerable Software and Affected Versions gradio-app gradio versions up to 5.29.1 Description A problematic vulnerability has been found in the CORS Handler component, specifically affecting the is valid origin function. The issue arises from the manipulation of the localhost aliases...

CVE-2025-1083

A vulnerability classified as problematic was found in Mindskip xzs-mysql 学之思开源考试系统 3.9.0. Affected by this vulnerability is an unknown functionality of the component CORS Handler. The manipulation leads to permissive cross-domain policy with untrusted domains. The attack can be launched remotely...

CVE-2025-1083 Mindskip xzs-mysql 学之思开源考试系统 CORS cross-domain policy

A vulnerability classified as problematic was found in Mindskip xzs-mysql 学之思开源考试系统 3.9.0. Affected by this vulnerability is an unknown functionality of the component CORS Handler. The manipulation leads to permissive cross-domain policy with untrusted domains. The attack can be launched remotely...

xzs-mysql 安全漏洞

xzs-mysql is a front-end and back-end separated exam system open source by China Mindskip Technology mindskip. A security vulnerability exists in xzs-mysql version 3.9.0, which stems from the component CORS Handler that can lead to overly lax cross-domain policies for untrusted domains...

CVE-2017-20146

A flaw was found in Gorilla. Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy...

CVE-2017-20146

Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy...

CVE-2017-20146

Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy...

Design/Logic Flaw

Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy...