Weaknesses of type CWE-441

231 results

Deputado Confuso (Proxy ou Intermediário Não Intencional)

Quando um componente intermediário (servidor, API, função, etc.) executa ações em nome de um cliente sem validar adequadamente quem realmente autorizou aquela ação, um atacante consegue explorar a confiança já estabelecida entre esse intermediário e outros sistemas. O intermediário acaba agindo como 'procurador involuntário' do atacante, realizando operações que o sistema final nunca autorizaria se a requisição viesse diretamente do atacante.

Example

Um servidor de cache proxy que aceita requisições GET de qualquer origem e as repassa a um serviço interno sem verificar se o cliente original deveria ter acesso àqueles dados. Um atacante faz o proxy buscar informações sensíveis do servidor interno e devolver para si, usando a confiança que o servidor interno tem no proxy.

How to mitigate

Valide a identidade e autorização do cliente original antes de repassar requisições para sistemas internos; use tokens ou assinaturas criptográficas que viagem junto com a requisição; implemente listas de origem segura (whitelist) rigorosas e autenticação mútua entre componentes intermediários e backends.

CVE-2026-54663MEDIUMswagger-typescript-api vulnerable to Server-Side Request Forgery via spec `$ref`EPSS 0.2%CVE-2026-48522MEDIUMPyJWKClient: missing scheme allowlist enables SSRF + token forgery via file://, ftp://, data: schemesEPSS 0.2%CVE-2026-121198HIGHConfused deputy in WebUI in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to bypass web origiEPSS 0.2%CVE-2026-87502MEDIUMConfused deputy in Fullscreen in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process andEPSS 0.2%CVE-2026-107232HIGHAsyncHttpClient: Origin credentials sent in cleartext to a proxy that rejects the CONNECTEPSS 0.2%CVE-2026-106286MEDIUMConfused deputy in Omnibox in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to bypass web origin policy via crafted networkEPSS 0.2%CVE-2026-27124HIGHFastMCP: Missing Consent Verification in OAuth Proxy Callback Facilitates Confused Deputy VulnerabilitiesEPSS 0.2%CVE-2026-55430MEDIUMCoder's subdomain workspace app routing trusts unauthenticated X-Forwarded-Host header, enabling cross-app data accessEPSS 0.2%CVE-2026-53514HIGHBetter Auth: Unauthorized invitation acceptance via unverified email match in organization pluginEPSS 0.2%CVE-2026-88983MEDIUMKubeflow Pipelines — API server fetches a caller-supplied pipelineURL without host validationEPSS 0.2%CVE-2026-108261CRITICALTinaCMS admin preview iframe loads an attacker-controlled origin from the URL fragmentEPSS 0.2%CVE-2025-11393HIGHInsights-runtimes-tech-preview/runtimes-inventory-rhel8-operator: improper proxy configuration allows unauthorized administrative commandsEPSS 0.2%CVE-2026-91742MEDIUMConfused deputy in PriceTracking in Google Chrome on on iOS prior to 153.0.8010.47 allowed a remote attacker leveraging social engineering tEPSS 0.2%CVE-2026-95361MEDIUMConfused deputy in DevTools in Google Chrome prior to 154.0.8037.57 allowed a remote attacker leveraging social engineering to bypass web orEPSS 0.2%CVE-2025-66415MEDIUMfastify-reply-from bypass of reply forwardingEPSS 0.2%CVE-2026-107282CRITICALAsyncHttpClient: Replay to a different host sends the original host request and credentials to the new hostEPSS 0.2%CVE-2026-13062HIGHMongoDB mongos Improper Validation of Internal Flags in Queryable Encryption Write Commands on Sharded ClustersEPSS 0.2%CVE-2026-118687HIGHCoder before 2.29.21, 2.34.12, 2.35.9, 2.36.7, and 2.37.4 Missing Audience Validation in GCP Instance-Identity AuthenticationEPSS 0.2%CVE-2026-72668HIGHUnintended Proxy or Intermediary ('Confused Deputy') in Kibana Leading to Privilege EscalationEPSS 0.2%CVE-2026-36608HIGHMercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows UPnP AddPortMapping to forward external ports to the router's own admEPSS 0.2%