Falhas do tipo CWE-287

2.450 resultados

Autenticação Insuficiente ou Ausente

Quando um usuário ou sistema afirma ser quem diz que é, a aplicação não valida (ou valida mal) essa identidade antes de conceder acesso. Isso permite que um atacante se passe por outra pessoa sem fornecer credenciais válidas, obtendo privilégios indevidos.

Exemplo

Um sistema que aceita login apenas verificando um campo de e-mail na sessão (sem senha), ou uma API que confia em um identificador de usuário enviado no header HTTP sem validar um token assinado. Um atacante simplesmente muda o valor e acessa dados de terceiros.

Como mitigar

Implemente autenticação robusta: exija senha forte + MFA quando possível, valide tokens com assinatura criptográfica, revoque sessões expiradas, e nunca confie em dados controlados pelo cliente. Teste autenticação em cada endpoint crítico.

CVE-2026-29193HIGHZITADEL: Bypassing Zitadel Login Behavior and Security Policy in Login V2EPSS 0.3%CVE-2024-56335HIGHPrivilege escalation allows organization groups to be updated/deleted if their UUID is known in vaultwardenEPSS 0.3%CVE-2026-28800MEDIUMNatro Macro: Malicious actions allowed through Discord RC Commands by any userEPSS 0.3%CVE-2023-3591MEDIUMLack of previous password reset tokens on new token creationEPSS 0.3%CVE-2025-15346CRITICALwolfSSL Python library `CERT_REQUIRED` mode fails to enforce client certificate requirementEPSS 0.3%CVE-2026-81237MEDIUMDell Wyse Management Suite, versions prior to 2605.0.3.683, contain an Improper Authentication vulnerability. An unauthenticated attacker wiEPSS 0.3%CVE-2024-3826HIGHBroken SAML ValidationEPSS 0.3%CVE-2026-71326LOWTraefik: BasicAuth singleflight key collision allows authenticated identity spoofingEPSS 0.3%CVE-2026-17628MEDIUMLangflow is affected by improper authentication due to missing password verification in the password reset endpointEPSS 0.3%CVE-2026-44720MEDIUMOpenLearnX: Critical Authentication Bypass via JWT Signature Verification Disabled Leading to Account TakeoverEPSS 0.3%CVE-2026-84623HIGHAn authorization issue was addressed with improved state management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27. EPSS 0.3%CVE-2026-60927HIGHVulnerability in the Oracle Public Sector Financials product of Oracle E-Business Suite (component: Internal Operations). Supported versionEPSS 0.3%CVE-2022-46774MEDIUMIBM Manage Application security bypassEPSS 0.3%CVE-2026-62493HIGHVulnerability in the Oracle Purchasing product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affEPSS 0.3%CVE-2026-61188HIGHVulnerability in the Oracle Agile Product Lifecycle Management for Process product of Oracle Supply Chain (component: Installation). The sEPSS 0.3%CVE-2026-60931HIGHVulnerability in the Oracle Public Sector Financials product of Oracle E-Business Suite (component: Internal Operations). Supported versionEPSS 0.3%CVE-2026-44351CRITICALfast-jwt: Empty HMAC secret accepted via async key resolver - JWT auth bypassEPSS 0.3%CVE-2026-60679HIGHVulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected areEPSS 0.3%CVE-2026-1410MEDIUMBeetel 777VR1 UART missing authenticationEPSS 0.3%CVE-2025-26438HIGHIn smp_process_secure_connection_oob_data of smp_act.cc, there is a possible way to bypass SMP authentication due to Incorrect implementatioEPSS 0.3%