Fallos del tipo CWE-346

698 resultados

Validação incorreta de origem (Origin Validation Error)

A aplicação falha em validar corretamente a origem (origem HTTP, domínio, referência) de requisições ou recursos, permitindo que um atacante simule estar vindo de uma origem confiável. Isso quebra mecanismos de segurança como CORS, CSRF e validações de referência, abrindo porta para ataques cross-site.

Ejemplo

Um banco implementa proteção CSRF verificando se o header `Origin` é igual a `banco.com.br`, mas não valida subdomínios. Um atacante consegue fazer requisições de `falso.banco.com.br` que passam na validação e transferem dinheiro da vítima.

Cómo mitigar

Valide a origem de forma rigorosa usando whitelist explícita (não apenas prefixos ou sufixos), implemente tokens CSRF anti-previsíveis, configure CORS corretamente evitando `Access-Control-Allow-Origin: *`, e use SameSite cookies quando possível.

CVE-2026-40622MEDIUMAnother 'ghost domain names' attack variantEPSS 0.1%CVE-2026-11278MEDIUMInappropriate implementation in CustomTabs in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to leak cross-origin EPSS 0.1%CVE-2026-41358LOWOpenClaw < 2026.4.2 - Sender Allowlist Bypass via Slack Thread ContextEPSS 0.1%CVE-2026-5899MEDIUMInsufficient policy enforcement in History Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who convinced a userEPSS 0.1%CVE-2026-33586MEDIUMAuthenticated SMTP Sender Address ForgeryEPSS 0.1%CVE-2026-85682HIGHYOP Poll <= 7.0.10 - Unauthenticated Origin Validation Error to Administrator Account Takeover via '/auth/wp-login-redirect' REST RouteEPSS 0.1%CVE-2026-91132MEDIUMDiscourse: Wildcard iframe origin allowlist bypass via authority separatorsEPSS 0.1%CVE-2026-44698HIGHHome Assistant: Cross-origin iframe access token exfiltration via WebView JS bridge callback injectionEPSS 0.1%CVE-2021-26735MEDIUMUntrusted Search Path While Executing REG DELETE by UninstallerEPSS 0.1%CVE-2026-74974MEDIUMSame-origin policy bypass in the Graphics: ImageLib componentEPSS 0.1%CVE-2026-94111MEDIUMTencent BrowserSkill through 0.3.0 Origin Validation Error in Local WebSocket DaemonEPSS 0.1%CVE-2026-22694MEDIUMAliasVault is Missing Origin Validation in Android Passkey Credential ProviderEPSS 0.1%CVE-2023-47193HIGHAn origin validation vulnerability in the Trend Micro Apex One security agent could allow a local attacker to escalate privileges on affecteEPSS 0.1%CVE-2026-100830HIGHMitigation bypass in the DOM: Navigation componentEPSS 0.1%CVE-2026-59297LOWSpring Cloud Function can incorrectly determine if URI is secureEPSS 0.1%CVE-2026-3846MEDIUMSame-origin policy bypass in the CSS Parsing and Computation componentEPSS 0.1%CVE-2026-101278MEDIUMTrusted Domain Project OpenDMARC PSL Wildcard opendmarc_tld.c : opendmarc_get_tld origin validationEPSS 0.1%CVE-2025-61740HIGHJohnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG Origin Validation ErrorEPSS 0.1%CVE-2026-105861HIGHPayload external upload trust validation issueEPSS 0.1%CVE-2026-118657MEDIUMEcho: HTTPS Redirect and HSTS Bypass via Unconditional Trust of Forwarded Scheme HeadersEPSS 0.1%