Falhas do tipo CWE-345

683 resultados

Verificação insuficiente de autenticidade de dados

A aplicação recebe dados de fontes externas (rede, arquivo, entrada do usuário) mas não valida adequadamente se eles realmente vieram de quem diz vir ou se não foram alterados no caminho. Isso permite que um atacante forje, intercepte ou modifique dados sem que o sistema detecte, comprometendo integridade e confiança.

Exemplo

Um serviço REST que confia cegamente em um campo 'user_id' vindo do cliente, sem verificar assinatura ou token, permitindo que alguém mude a URL para acessar dados de outro usuário. Ou um arquivo de configuração lido sem validar sua hash, permitindo execução de código malicioso se o arquivo for corrompido.

Como mitigar

Use mecanismos criptográficos de autenticação (HMAC, assinatura digital, certificados TLS) para garantir a origem e integridade dos dados. No lado do servidor, nunca confie em identificadores ou claims do cliente — valide contra seu próprio estado autorizado (sessão, JWT assinado, etc).

CVE-2026-123599MEDIUMHickory DNS before 0.26.0-beta.1 DNSSEC Validation Bypass via Non-IN Class RecordsEPSS 0.1%CVE-2022-33861MEDIUMInsufficient verification of authenticity in IPPEPSS 0.1%CVE-2022-42267HIGHNVIDIA GPU Display Driver for Windows contains a vulnerability where a regular user can cause an out-of-bounds read, which may lead to code EPSS 0.1%CVE-2026-123594MEDIUMHickory DNS through 0.26.0-alpha.1 DNSSEC NSEC Validation Bypass for Empty Non-TerminalsEPSS 0.1%CVE-2026-85008LOWundici vulnerable to caching and replay of unsafe HTTP method responsesEPSS 0.1%CVE-2026-123582MEDIUMHickory DNS 0.25.0 before 0.26.2 DNSSEC Validation Bypass via SOA RecordEPSS 0.1%CVE-2026-102946CRITICALjoserfc: JWS signature verification bypass via empty signatures array in jws.deserialize_jsonEPSS 0.1%CVE-2026-74922MEDIUMDocument Gallery 4.1 - 5.1.1 - Unauthenticated Document Thumbnail Replacement via Thumber Webhook Signature BypassEPSS 0.1%CVE-2021-26396MEDIUMInsufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest. EPSS 0.1%CVE-2023-20576HIGHInsufficient Verification of Data Authenticity in AGESA™ may allow an attacker to update SPI ROM data potentially resulting in denial of serEPSS 0.1%CVE-2026-33243HIGHbarebox: FIT Signature Verification Bypass VulnerabilityEPSS 0.1%CVE-2026-103359MEDIUMPayDunya WooCommerce Payment Gateway 1.1.6 - Unauthenticated Order Payment Completion via Webhook ForgeryEPSS 0.1%CVE-2026-103300MEDIUMEurobank WooCommerce Payment Gateway <= 2.1.1 - Unauthenticated Order Payment Forgery via Unverified CallbackEPSS 0.1%CVE-2026-92429MEDIUMRede Itaú for WooCommerce 3.7.1 - 5.5.2 - Unauthenticated Order Status Manipulation via maxiPago Debit WebhookEPSS 0.1%CVE-2023-22315MEDIUM Snap One Wattbox WB-300-IP-3 versions WB10.9a17 and prior use a proprietary local area network (LAN) protocol that does not verify updates EPSS 0.1%CVE-2026-121633MEDIUMOrder Tracking < 3.6.0 - Unauthenticated Payment Confirmation Forgery via PayPal IPN ListenerEPSS 0.1%CVE-2026-103310MEDIUMPayHere Payment Gateway 2.4.0 - 2.4.5 - Unauthenticated Payment Bypass via Unverified Payment NotificationEPSS 0.1%CVE-2026-91075MEDIUMEupago Gateway For Woocommerce 4.5.0 - 4.7.5 - Unauthenticated Payment Confirmation BypassEPSS 0.1%CVE-2026-89411MEDIUMPaymattic < 4.6.26 - Unauthenticated Payment Bypass via Unbound Stripe PaymentIntentEPSS 0.1%CVE-2026-14663MEDIUMPostgreSQL pgcrypto, for OpenSSL-disabled ciphers, silently encrypts to and decrypts from cleartextEPSS 0.1%