Falhas do tipo CWE-1286

88 resultados

Validação Inadequada da Sintaxe de Entrada

A aplicação aceita entrada do usuário sem validar corretamente se ela segue a sintaxe esperada, permitindo dados malformados ou injetados chegarem até o processamento. Isso abre caminho para injeção de código, parsing incorreto ou comportamento imprevisto, já que o sistema assume que a entrada é segura sem verificar sua estrutura.

Exemplo

Um formulário recebe uma data que deveria estar em formato DD/MM/AAAA, mas aceita qualquer string sem validar — como '32/13/abc' ou ''; e'; DROP TABLE users; --'. O backend processa isso diretamente sem checar sintaxe, causando erros lógicos ou injeção SQL.

Como mitigar

Implemente validação de entrada no lado servidor antes de qualquer processamento: verifique formato (regex, parser dedicado), tipos de dados, comprimento e caracteres permitidos. Use bibliotecas de parsing que rejeitam entrada malformada, nunca confie em validação frontend.

CVE-2026-48059HIGHNetty HAProxy: Unbalanced Reference Count in Nested PP2_TYPE_SSL TLV Parsing Leads to Memory ExhaustionEPSS 0.6%CVE-2023-28985HIGHSRX Series and MX Series: An FPC core is observed when IDP is enabled on the device and a specific malformed SSL packet is receivedEPSS 0.6%CVE-2026-33218HIGHNATS has pre-auth server panic via leafnode handlingEPSS 0.6%CVE-2024-8160LOWErik de Jong, member of the AXIS OS Bug Bounty Program, has found that the VAPIX API ftptest.cgi did not have a sufficient input validation EPSS 0.6%CVE-2026-27889HIGHNATS: Pre-auth remote server crash via WebSocket frame length overflow in wsReadEPSS 0.6%CVE-2023-43850MEDIUMImproper input validation in the user management function of web interface in Aten PE6208 2.3.228 and 2.4.232 allows remote authenticated usEPSS 0.6%CVE-2024-21598HIGHJunos OS and Junos OS Evolved: A malformed BGP tunnel encapsulation attribute will lead to an rpd crashEPSS 0.6%CVE-2025-55085HIGHWeb http client: Unchecked Server-Side Malicious Packet IssueEPSS 0.6%CVE-2024-0218HIGHDoS on IDS parsing of malformed Radius packets in Guardian before 23.4.1EPSS 0.6%CVE-2025-13033HIGHNodemailer: nodemailer: email to an unintended domain can occur due to interpretation conflictEPSS 0.5%CVE-2024-21595HIGHJunos OS: EX4100, EX4400, EX4600, QFX5000 Series: A high rate of specific ICMP traffic will cause the PFE to hangEPSS 0.5%CVE-2024-21616HIGHJunos OS: MX Series and SRX Series: Processing of a specific SIP packet causes NAT IP allocation to failEPSS 0.5%CVE-2023-32649HIGHDoS on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0EPSS 0.5%CVE-2025-24812HIGHA vulnerability has been identified in SIMATIC S7-1200 CPU 1211C AC/DC/Rly (6ES7211-1BE40-0XB0) (All versions < V4.7), SIMATIC S7-1200 CPU 1EPSS 0.5%CVE-2026-6918HIGHIn Eclipse Open9J versions 0.21 to 0.58, a pre-authentication remote attacker can crash JITServer by sending a 32-byte crafted TCP message.EPSS 0.5%CVE-2025-41719HIGHSauter: Improper Validation of user-controlled dataEPSS 0.5%CVE-2025-24348MEDIUMA vulnerability in the “Network Interfaces” functionality of the web application of ctrlX OS allows a remote authenticated (low-privileged) EPSS 0.5%CVE-2023-23903MEDIUMDoS via SAML configuration in Guardian/CMC before 22.6.2EPSS 0.5%CVE-2025-24347MEDIUMA vulnerability in the “Network Interfaces” functionality of the web application of ctrlX OS allows a remote authenticated (low-privileged) EPSS 0.5%CVE-2025-54995MEDIUMAsterisk remotely exploitable leak of RTP UDP ports and internal resourcesEPSS 0.5%