Falhas do tipo CWE-287

2.860 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-2026-92376HIGHLocal Privilege Escalation via IPC Broker Impersonation in TeamViewer Remote Management Monitoring for WindowsEPSS 0.1%CVE-2026-34204HIGHMinIO is Vulnerable to SSE Metadata Injection via Replication HeadersEPSS 0.1%CVE-2022-41590MEDIUMSome smartphones have authentication-related (including session management) vulnerabilities as the setup wizard is bypassed. Successful explEPSS 0.1%CVE-2026-48991MEDIUMXianYuLauncher: Legacy Microsoft account OAuth sign-in flow lacks PKCE and state validationEPSS 0.1%CVE-2026-13208MEDIUMKubevirt: virt-handler-rhel9: kubevirt: virt-handler notify server trusts vmi identity from unauthenticated grpc request bodyEPSS 0.1%CVE-2020-9250LOWThere is an insufficient authentication vulnerability in some Huawei smart phone. An unauthenticated, local attacker can crafts software pacEPSS 0.1%CVE-2024-40653HIGHIn multiple functions of ConnectionServiceWrapper.java, there is a possible way to retain a permission forever in the background due to a loEPSS 0.1%CVE-2026-86989MEDIUMAn authorization issue was addressed with improved state management. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOEPSS 0.1%CVE-2026-31392HIGHsmb: client: fix krb5 mount with username optionEPSS 0.1%CVE-2022-25832MEDIUMImproper authentication vulnerability in S Secure prior to SMR Apr-2022 Release 1 allows physical attackers to use locked Myfiles app withouEPSS 0.1%CVE-2026-47272HIGHpam_usb: OTP pad authentication bypass via missing system pad check and uninitialized RNG bufferEPSS 0.1%CVE-2026-104627MEDIUMGitea OpenID account linking without session bindingEPSS 0.1%CVE-2025-6044MEDIUMAn Improper Access Control vulnerability in the Stylus Tools component of Google ChromeOS version 16238.64.0 on the garaged stylus devices aEPSS 0.1%CVE-2025-10684MEDIUMConstruction Light < 1.6.8 - Subscriber+ Arbitrary Plugin ActivationEPSS 0.1%CVE-2021-25347MEDIUMHijacking vulnerability in Samsung Email application version prior to SMR Feb-2021 Release 1 allows attackers to intercept when the providerEPSS 0.1%CVE-2026-58915MEDIUMA physical occupant on an Android Automotive OS (AAOS) Multi-User Multi-Display (MUMD) passenger display can view sensitive Heads-Up NotificEPSS 0.1%CVE-2026-82332MEDIUMFireware OS Improper Authentication in AuthPoint MFA Verification Allows Session HijackingEPSS 0.1%CVE-2023-2626HIGHAuthentication Bypass in OpenThread Boarder Router devicesEPSS 0.1%CVE-2021-25389LOWImproper running task check in S Secure prior to SMR MAY-2021 Release 1 allows attackers to use locked app without authentication.EPSS 0.1%CVE-2026-102631MEDIUMauthd: Account takeover via username fallback in identity matching after IdP email reassignmentEPSS 0.1%