Fallos del tipo CWE-1286

97 resultados

Validação inadequada da sintaxe de entrada

O software aceita entrada do usuário sem verificar corretamente se ela segue o formato esperado, permitindo dados malformados ou inesperados processarem normalmente. Isso pode levar a interpretações incorretas, injeções ou comportamentos impredizíveis quando o parser ou processador tenta lidar com dados que deveriam ser rejeitados.

Ejemplo

Um serviço web aceita um JSON sem validar se é válido (aspas desalinhadas, chaves incompletas), e ao processar com lenient parsing, um atacante injeta comandos ou campos extras que alteram a lógica da aplicação. Ou uma API que não valida um CSV antes de importar, permitindo que linhas malformadas causem execução de código ou corrupção de dados.

Cómo mitigar

Implemente validação sintática rigorosa antes de processar qualquer entrada: parse com strict mode, rejeite dados malformados explicitamente, e use schemas (JSON Schema, DTD, etc.). Nunca confie em lenient parsing ou tratamento silencioso de erros de sintaxe — falhe aberto (fail-safe).

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%