Falhas do tipo CWE-287

2.855 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-2026-17488MEDIUMIBM i is Affected By An Improper Authentication Vulnerability in SST / DSTEPSS 0.2%CVE-2026-44478HIGHhoppscotch: Unauthenticated Onboarding Config Disclosure via Empty Recovery TokenEPSS 0.2%CVE-2025-0663MEDIUMPotential cross-tenant account takeover vulnerability in Multiple WSO2 Products via Adaptive Authentication and Auto-LoginEPSS 0.2%CVE-2026-87292LOWVulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: NetworkEPSS 0.2%CVE-2023-32453MEDIUM Dell BIOS contains an improper authentication vulnerability. A malicious user with physical access to the system may potentially exploit thEPSS 0.2%CVE-2021-3519MEDIUMA vulnerability was reported in some Lenovo Desktop models that could allow unauthorized access to the boot menu, when the "BIOS Password AtEPSS 0.2%CVE-2026-25922HIGHauthentik has a Signature Verification Bypass via SAML Assertion WrappingEPSS 0.2%CVE-2026-105815HIGHCredential Material Exposure Leading to Unauthorized Streamed Media-Session Access in TP-Link Tapo C210EPSS 0.2%CVE-2026-40178MEDIUMajenti.plugin.core has a race conditions in 2FAEPSS 0.2%CVE-2023-21419MEDIUMAn improper implementation logic in Secure Folder prior to SMR Jan-2023 Release 1 allows the Secure Folder container remain unlocked under cEPSS 0.2%CVE-2026-8293HIGHReally Simple Security < 9.5.10.1 - Authentication Bypass via Two-Factor OTP SkipEPSS 0.2%CVE-2022-39245HIGHMist vulnerable to user providing a Sudo binary for authentication checksEPSS 0.2%CVE-2026-105213HIGHZITADEL before 4.17.1 Authentication Bypass via Login V2 for Deactivated OrganizationsEPSS 0.2%CVE-2026-42008MEDIUMForwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a vaEPSS 0.2%CVE-2025-24904HIGHlibsignal-service-rs doesn't sanity check plaintext envelopes are not sanity-checkedEPSS 0.2%CVE-2026-105210HIGHZITADEL before 4.17.1 Unauthenticated MFA Enrollment via Login V1 Init HandlersEPSS 0.2%CVE-2024-52968MEDIUMAn improper authentication in Fortinet FortiClientMac 7.0.11 through 7.2.4 allows attacker to gain improper access to MacOS via empty passwoEPSS 0.2%CVE-2026-103312MEDIUMPayment Integration Wompi <= 4.0.1 - Unauthenticated Payment Confirmation Forgery via IPN CallbackEPSS 0.2%CVE-2025-2230HIGHPhilips Intellispace Cardiovascular (ISCV) Improper AuthenticationEPSS 0.2%CVE-2026-44711HIGHpam_usb: Symlink attacks on pad directory and pad files enable authentication bypass and root file corruptionEPSS 0.2%