Weaknesses of type CWE-287

2,850 results

Falha na autenticação ou verificação insuficiente de identidade

Quando um usuário, sistema ou aplicação afirma ser alguém (ou algo), o software não valida adequadamente essa identidade antes de conceder acesso ou executar ações sensíveis. O risco é claro: um atacante se passa por outra pessoa e obtém privilégios ou dados que não deveria ter.

Example

Um app que aceita um token JWT sem verificar a assinatura, confiando apenas no nome de usuário no payload. Um atacante modifica o token para elevar seu nível de acesso e o sistema acredita, pois nunca validou a autenticidade real do token.

How to mitigate

Implemente autenticação robusta: valide credenciais em backend seguro, use protocolos padrão (OAuth 2.0, SAML, Kerberos), verifique integridade de tokens (assinatura criptográfica), implemente MFA para operações críticas e nunca confie em dados do cliente sem validação no servidor.

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%