Falhas do tipo CWE-20

5.418 resultados

Validação inadequada de entrada

A aplicação recebe dados do usuário ou de fontes externas mas não valida (ou valida mal) se esses dados têm as propriedades necessárias para processamento seguro. Isso abre porta para injeção de código, buffer overflow, lógica corrompida e outros ataques que exploram dados malformados ou maliciosos.

Exemplo

Um formulário web aceita um CPF sem verificar se tem 11 dígitos numéricos, ou um app móvel recebe um ID de usuário em JSON sem confirmar se é um inteiro — atacantes exploram isso para acessar dados de outros usuários, executar queries SQL maliciosas ou causar erro de processamento.

Como mitigar

Implemente validação rigorosa na entrada: verifique tipo, comprimento, formato, intervalo de valores permitidos. Use whitelist (aceitar só o que você sabe ser seguro) em vez de blacklist. Valide tanto no cliente quanto no servidor, e use bibliotecas de parsing seguro para formatos complexos (XML, JSON).

CVE-2026-71300CRITICALApache Camel: Camel-Atmosphere-Websocket: WebSocket dispatch header injectionEPSS 0.7%CVE-2026-65637CRITICALApache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incompleteEPSS 0.7%CVE-2023-27597HIGHOpenSIPS has vulnerability in the parse_uri() functionEPSS 0.7%CVE-2023-47141MEDIUMIBM Db2 denial of serviceEPSS 0.7%CVE-2023-47158MEDIUMIBM Db2 denial of serviceEPSS 0.7%CVE-2026-53551MEDIUMfree5GC AUSF: null byte injection in supiOrSuci causes HTTP 500 internal service failureEPSS 0.7%CVE-2025-29923LOWgo-redis allows potential out of order responses when `CLIENT SETINFO` times out during connection establishmentEPSS 0.7%CVE-2023-36674—An issue was discovered in MediaWiki before 1.35.11, 1.36.x through 1.38.x before 1.38.7, 1.39.x before 1.39.4, and 1.40.x before 1.40.1. ItEPSS 0.7%CVE-2023-5832CRITICALImproper Input Validation in mintplex-labs/anything-llmEPSS 0.7%CVE-2025-53939MEDIUMKiteworks Core is vulnerable to Improper Input ValidationEPSS 0.7%CVE-2024-12138MEDIUMhorilla create_skills deserializationEPSS 0.7%CVE-2017-7509LOWAn input validation error was found in Red Hat Certificate System's handling of client provided certificates before 8.1.20-1. If the certreqEPSS 0.7%CVE-2024-22119MEDIUMStored XSS in graph items select formEPSS 0.7%CVE-2025-59250HIGHJDBC Driver for SQL Server Spoofing VulnerabilityEPSS 0.7%CVE-2024-47179HIGHRSSHub's `docker-test-cont.yml` workflow is vulnerable to Artifact Poisoning which may lead to a full repository takeover.EPSS 0.7%CVE-2026-91932CRITICALFlowise before 3.1.4 Remote Code Execution via cwd ParameterEPSS 0.7%CVE-2024-49361HIGHPotential Vulnerability in ACON Library: Improper Input Validation Leading to Malicious Code ExecutionEPSS 0.7%CVE-2026-48204CRITICALApache Camel: Camel-MongoDB-GridFS: The gridfs.* control headers used non-Camel-prefixed names that bypass the HTTP header filter, allowing an HTTP client to switch the GridFS operation - including destructive file deletion - in the default configurationEPSS 0.7%CVE-2026-40920CRITICALApache Ranger: Privilege Escalation via URL ParameterEPSS 0.7%CVE-2026-48755CRITICALIncus has an argument injection in backup compression algorithm leading to AFW and ACEEPSS 0.7%