Falhas do tipo CWE-287

2.850 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-2026-90961CRITICALMISP LdapAuth and LinOTPAuth Authentication Bypass via Empty or Non-String CredentialsEPSS 0.6%CVE-2022-46400MEDIUMThe Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) allows attackers to bypass passkey enEPSS 0.6%CVE-2024-3701CRITICALImproper Authentication in com.transsion.kolun.aiserviceEPSS 0.6%CVE-2023-41089HIGHImproper Authentication in DEXMA DEXGateEPSS 0.6%CVE-2026-80218HIGHSign-in token minted for one resource accepted by another in AshAuthenticationEPSS 0.6%CVE-2026-97637CRITICALJSON API Auth <= 3.1.2 - Unauthenticated Authentication Bypass via Cached 'generate_auth_cookie' ResponseEPSS 0.6%CVE-2026-35030CRITICALLiteLLM has an authentication bypass via OIDC userinfo cache key collisionEPSS 0.6%CVE-2022-4441HIGHPrivilege Escalation Vulnerability in Hitachi Storage Plug-in for VMware vCenterEPSS 0.6%CVE-2026-16198MEDIUMSipeed PicoClaw First Run Setup access_control.go authentication bypassEPSS 0.6%CVE-2025-27672CRITICALVasion Print (formerly PrinterLogic) before Virtual Appliance Host 22.0.843 Application 20.0.1923 allows OAUTH Security Bypass OVE-20230524-EPSS 0.6%CVE-2026-2165MEDIUMdetronetdip E-commerce Account Creation Endpoint add_seller.php missing authenticationEPSS 0.6%CVE-2024-9946HIGHSocial Share, Social Login and Social Comments Plugin – Super Socializer <= 7.13.68 - Authentication Bypass via Disqus OAuth providerEPSS 0.6%CVE-2024-47806HIGHJenkins OpenId Connect Authentication Plugin 4.354.v321ce67a_1de8 and earlier does not check the `aud` (Audience) claim of an ID Token, alloEPSS 0.6%CVE-2024-47807HIGHJenkins OpenId Connect Authentication Plugin 4.354.v321ce67a_1de8 and earlier does not check the `iss` (Issuer) claim of an ID Token, allowiEPSS 0.6%CVE-2018-0163—A vulnerability in the 802.1x multiple-authentication (multi-auth) feature of Cisco IOS Software could allow an unauthenticated, adjacent atEPSS 0.6%CVE-2026-85701MEDIUMramon-victor freegpt-webui Authentication Check __init__.py ChatCompletion.create missing authenticationEPSS 0.6%CVE-2022-39252HIGHWhen matrix-rust-sdk recieves forwarded room keys, the reciever doesn't check if it requested the key from the forwarderEPSS 0.6%CVE-2026-44472HIGHSaleor: Account pre-hijacking vulnerability due to unverified anonymous order mergeEPSS 0.6%CVE-2025-5149MEDIUMWCMS Login getallcon getMemberByUid improper authenticationEPSS 0.6%CVE-2026-10243MEDIUMcode-projects Smart Parking System Admin Endpoint missing authenticationEPSS 0.6%