Fallos del tipo CWE-444

365 resultados

Interpretação inconsistente de requisições HTTP (HTTP Request Smuggling)

Ocorre quando proxies, load balancers ou firewalls interpretam requisições HTTP de forma diferente do servidor backend. Um atacante explora essa discrepância enviando requisições ambíguas (com headers conflitantes ou corpo malformado) que são parseadas de modos distintos por camadas diferentes da infraestrutura, permitindo contornar controles de segurança ou injetar requisições não autorizadas no backend.

Ejemplo

Um proxy usa Content-Length para determinar o fim da requisição, enquanto o servidor backend usa Transfer-Encoding: chunked. O atacante envia uma requisição que contém dois requests: um legítimo (que passa pelo proxy) e um malicioso embutido no corpo (que o backend processa como requisição separada). Resultado: bypass de WAF ou injeção de cache envenenado.

Cómo mitigar

Normalize o parsing: garanta que todas as camadas (proxy, load balancer, aplicação) usem as mesmas regras RFC 7230 para interpretar headers Content-Length e Transfer-Encoding; desabilite métodos ambíguos no proxy (reject requisições com ambos os headers); mantenha proxies e servidores sincronizados em versões e configurações de parsing HTTP.

CVE-2026-78660HIGHHTTP/2 transport accepts malformed framing-related headers in net/httpEPSS 0.5%CVE-2026-81356HIGHVisual Studio Code Security Feature Bypass VulnerabilityEPSS 0.5%CVE-2026-92238CRITICALAmbiguous parsing of mail headersEPSS 0.5%CVE-2026-58155CRITICALApache Traffic Server: Header-name length truncation enables header aliasing and request smugglingEPSS 0.5%CVE-2025-4366HIGHRequest Smuggling Vulnerability in PingoraEPSS 0.5%CVE-2026-28497CRITICALTinyWeb: Integer Overflow in `_Val` (HTTP Request Smuggling)EPSS 0.5%CVE-2024-44775HIGHkmqtt v0.2.7 is vulnerable to Denial of Service (DoS) due to a Null Pointer Exception. A remote attacker can cause the broker to crash by seEPSS 0.5%CVE-2026-94439HIGHHTTP/1 server connection desynchronization after 2xx CONNECT response in net/httpEPSS 0.5%CVE-2026-68006CRITICALAn issue in Puma v.5.0.0 and before v.8.0.3 allows an attacker to execute arbitrary code via the ext/puma_http11/http11_parser.rl fileEPSS 0.5%CVE-2026-77756LOWApache Tomcat: Transfer-Encoding honored for HTTP/1.0 requestsEPSS 0.5%CVE-2026-82672MEDIUMUnvalidated chunk-size line tail in Mint HTTP/1 client enables response smuggling against strict intermediaries on pooled connectionsEPSS 0.5%CVE-2026-59249MEDIUMSign-tolerant HTTP/1 chunk-size parser in Mint enables response smuggling against strict intermediaries on pooled connectionsEPSS 0.5%CVE-2026-73812HIGHinets, httpd: HTTP Request Smuggling via Transfer-Encoding and Content-LengthEPSS 0.5%CVE-2024-21088HIGHVulnerability in the Oracle Production Scheduling product of Oracle E-Business Suite (component: Import Utility). Supported versions that aEPSS 0.5%CVE-2026-58047MEDIUMHTTP Smuggling in cPanel allows potential leak of credentials.EPSS 0.5%CVE-2026-63379MEDIUMLibevent: HTTP Header smugglingEPSS 0.5%CVE-2026-23941HIGHRequest smuggling via first-wins Content-Length parsing in inets httpdEPSS 0.5%CVE-2026-50197HIGHSkipper: opaAuthorizeRequestWithBody filter bypasses OPA policy on Transfer-Encoding: chunked / HTTP/2 requestsEPSS 0.5%CVE-2026-85078MEDIUMsanic chunked trailer request smuggling allows hidden second request executionEPSS 0.5%CVE-2025-23167MEDIUMA flaw in Node.js 20's HTTP parser allows improper termination of HTTP/1 headers using `\r\n\rX` instead of the required `\r\n\r\n`. This inEPSS 0.5%