Weaknesses of type CWE-346

698 results

Validação incorreta de origem em requisições cross-origin

A aplicação falha em validar corretamente a origem (domínio) de requisições HTTP, especialmente em cenários de CORS (Cross-Origin Resource Sharing) ou WebSockets. Um atacante pode contornar controles de segurança e executar ações em nome do usuário legítimo, ou acessar dados sensíveis que deveriam estar protegidos.

Example

Um banco implementa CORS permitindo qualquer origem (`Access-Control-Allow-Origin: *`) ou valida o header `Origin` de forma fraca (aceitando subdomínios descontrolados). Um site malicioso faz requisições ao banco em background enquanto o usuário está logado, roubando dados ou transferindo dinheiro.

How to mitigate

Valide a origem contra uma lista branca explícita de domínios confiáveis; implemente SameSite cookies; use tokens CSRF + verificação de origin no servidor; evite `Access-Control-Allow-Origin: *` em APIs sensíveis; valide o header `Origin` exatamente, sem wildcards ou regex permissivo.

CVE-2026-41376LOWOpenClaw < 2026.3.31 - Matrix Thread Context Allowlist Bypass via Sender ValidationEPSS 0.2%CVE-2026-21790MEDIUMHCL Traveler is susceptible to a weak default HTTP header validation vulnerabilityEPSS 0.2%CVE-2026-75025MEDIUMMattermost Desktop local network access from server-rendered contentEPSS 0.2%CVE-2026-12032LOWInappropriate implementation in Passwords in Google Chrome on Android prior to 149.0.7827.115 allowed a remote attacker who had compromised EPSS 0.2%CVE-2026-55669MEDIUMZITADEL: Missing Token Audience Validation (`aud`) in JWT IdP ProviderEPSS 0.2%CVE-2026-77363HIGHobsidian-tc Streamable HTTP transport permits cross-origin loopback vault accessEPSS 0.2%CVE-2026-102344HIGHLavish: DNS rebinding allows any website to read arbitrary local files and inject prompts into the AI agent via the unauthenticated local serverEPSS 0.2%CVE-2026-100816HIGHSite isolation issue in the DOM: Networking componentEPSS 0.2%CVE-2026-100809HIGHSame-origin policy bypass in the DevTools componentEPSS 0.2%CVE-2024-13068HIGHHost Header Injection in Akinsoft's LimonDeskEPSS 0.2%CVE-2026-11178MEDIUMInsufficient policy enforcement in WebView in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker to leak cross-originEPSS 0.2%CVE-2026-11226MEDIUMInsufficient policy enforcement in PreviewTab in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker who convinced a uEPSS 0.2%CVE-2022-29818LOWIn JetBrains IntelliJ IDEA before 2022.1 origin checks in the internal web server were flawedEPSS 0.1%CVE-2023-28795HIGHClient IPC validation bypassEPSS 0.1%CVE-2026-11217MEDIUMInappropriate implementation in Fenced Frames in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the rendEPSS 0.1%CVE-2026-47265MEDIUMAIOHTTP vulnerable to cross-origin redirect with per-request cookiesEPSS 0.1%CVE-2026-72702CRITICALGrav CMS before 2.0.16 Origin Validation Bypass via RefererEPSS 0.1%CVE-2026-109829HIGHundici vulnerable to cache poisoning and cross-user disclosure via cross-origin redirectsEPSS 0.1%CVE-2026-11243MEDIUMInappropriate implementation in Downloads in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to bypass navigation restrictionEPSS 0.1%CVE-2026-116630MEDIUMundici vulnerable to cross-user information disclosure via cross-origin redirect revalidationEPSS 0.1%