Fallos del tipo CWE-346

590 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-2026-81102LOWDropbox Dash MCP Server DNS Rebinding via Missing Host Header ValidationEPSS 0.1%CVE-2026-41358LOWOpenClaw < 2026.4.2 - Sender Allowlist Bypass via Slack Thread ContextEPSS 0.1%CVE-2026-47825HIGHSpring Cloud Gateway Server Forwards Headers from Untrusted Proxies in certain situationsEPSS 0.1%CVE-2026-84482HIGHWWBN AVideo Cross-Site Request Forgery via get_domain() validationEPSS 0.1%CVE-2026-69245MEDIUMGuzzle: Noncanonical cookie domain keeps subdomain scopeEPSS 0.1%CVE-2026-44698HIGHHome Assistant: Cross-origin iframe access token exfiltration via WebView JS bridge callback injectionEPSS 0.1%CVE-2026-28403HIGHTextream Cross-Site WebSocket Hijacking (CSWSH) vulnerabilityEPSS 0.1%CVE-2026-40622MEDIUMAnother 'ghost domain names' attack variantEPSS 0.1%CVE-2026-35568HIGHMCP Java-SDK has a DNS Rebinding VulnerabilityEPSS 0.1%CVE-2026-74974MEDIUMSame-origin policy bypass in the Graphics: ImageLib componentEPSS 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-2025-61740HIGHJohnson Controls IQ Panels2, 2+, IQHub, IQPanel 4, PowerG Origin Validation ErrorEPSS 0.1%CVE-2026-41057HIGHAVideo has CORS Origin Reflection Bypass via plugin/API/router.php and allowOrigin(true) that Exposes Authenticated API ResponsesEPSS 0.1%CVE-2026-18016MEDIUMInsufficient policy enforcement in Chrome for iOS in Google Chrome on iOS prior to 151.0.7922.72 allowed a remote attacker to perform UI spoEPSS 0.1%CVE-2026-54605HIGHOAuth: Cross-origin token-request redirects can expose signed request metadataEPSS 0.1%CVE-2026-23792MEDIUMAn issue was discovered in NR RRC in Samsung Mobile Processor and Modem Exynos 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, WEPSS 0.1%CVE-2026-11309MEDIUMInsufficient policy enforcement in History in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to perform UI spoofing via a crEPSS 0.1%CVE-2026-22694MEDIUMAliasVault is Missing Origin Validation in Android Passkey Credential ProviderEPSS 0.1%CVE-2021-26735MEDIUMUntrusted Search Path While Executing REG DELETE by UninstallerEPSS 0.1%CVE-2026-12284LOWMattermost Desktop App Missing IPC Sender Validation in Calls Leave HandlerEPSS 0.1%