Weaknesses of type CWE-1286

97 results

Validação inadequada da sintaxe de entrada

A aplicação aceita dados de entrada sem verificar se estão sintaticamente corretos conforme o formato esperado (JSON, XML, CSV, expressões regulares, etc.). Isso permite que dados malformados ou injetados passem pela validação e causem comportamentos inesperados: parsing incorreto, execução de lógica não prevista ou até injeção de código.

Example

Um parser JSON que não valida chaves duplicadas ou tipos de dados antes de processar deixa passar um payload malicioso. Ou um formulário que aceita emails sem verificar o símbolo '@', causando erro em operações que assumem formato válido.

How to mitigate

Sempre validar entrada contra um schema ou padrão esperado (whitelist) antes de processar: use bibliotecas de parsing robustas com validação integrada, implemente regex ou schema validation (JSONSchema, etc.), e teste com entradas malformadas. Rejeitar (não apenas limpar) dados sintaticamente inválidos.

CVE-2026-6442HIGHImproper Command Detection Logic Allows RCE in Cortex Code Command-Line InterfaceEPSS 0.4%CVE-2026-83611MEDIUMxmldom: Parser silently accepts a not-well-formed end tag whose name is followed by a line break and trailing contentEPSS 0.4%CVE-2026-50131HIGHFedify has an incomplete SSRF mitigation after GHSA-p9cg-vqcc-grcx: validatePublicUrl allows special-use IPv4 rangesEPSS 0.4%CVE-2026-33778HIGHJunos OS: SRX Series, MX Series: When a specifically malformed first ISAKMP packet is received kmd/iked crashesEPSS 0.3%CVE-2026-40198HIGHNet::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypassEPSS 0.3%CVE-2025-36262MEDIUMIBM Planning Analytics Local information disclosureEPSS 0.3%CVE-2023-21405MEDIUMDenial-of-Service vulnerability in Axis Network Door Controller's and Axis Network Intercom's OSDP communicationEPSS 0.3%CVE-2024-6284MEDIUMImproper IPv4 and IPv6 byte order storage in github.com/google/nftablesEPSS 0.3%CVE-2026-20114MEDIUMA vulnerability in the Lobby Ambassador web-based management API of Cisco IOS XE Software could allow an authenticated, remote attacker to eEPSS 0.3%CVE-2020-16220—Philips Patient Monitoring Devices Improper Validation of Syntactic Correctness of InputEPSS 0.3%CVE-2026-88009HIGHTraefik: Rootless HTTP/1 request-target routes as "/" but is forwarded verbatim, bypassing path-scoped routing, middleware guards and access loggingEPSS 0.3%CVE-2023-44204MEDIUMJunos OS and Junos OS Evolved: The rpd will crash upon receiving a malformed BGP UPDATE messageEPSS 0.3%CVE-2025-67492MEDIUMWeblate's over‑permissive webhook endpoint enables mass repository updates and component enumerationEPSS 0.3%CVE-2026-0931MEDIUMDenial-of-service vulnerability in M-Files ServerEPSS 0.2%CVE-2021-4479MEDIUMDräger Atlan A350 1.00 <= 1.01 DoS via Medibus InterfaceEPSS 0.2%CVE-2019-25723MEDIUMDräger Perseus A500 2.00-2.02 DoS via Medibus InterfaceEPSS 0.2%CVE-2026-0983HIGHDenial of service vulnerability in M-Files ServerEPSS 0.2%CVE-2026-69211MEDIUMHttp4s: Set-Cookie rendering does not escape attribute delimitersEPSS 0.2%CVE-2026-55767MEDIUMGuzzle: Dot-Only Cookie Domains Match All Hosts in guzzlehttp/guzzleEPSS 0.2%CVE-2023-6950LOWAn Improper Input Validation vulnerability affecting the FTP service running on the DJI Mavic Mini 3 Pro could allow an attacker to craft a EPSS 0.2%