Weaknesses of type CWE-1286

110 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-2026-0663MEDIUMDenial of Service condition in M-Files ServerEPSS 0.4%CVE-2026-67418MEDIUMRabbitMQ MQTT 5: inapplicable PUBLISH property disconnects matching subscribersEPSS 0.4%CVE-2026-6442HIGHImproper Command Detection Logic Allows RCE in Cortex Code Command-Line InterfaceEPSS 0.4%CVE-2024-6173MEDIUM51l3nc3, member of the AXIS OS Bug Bounty Program, has found that a Guard Tour VAPIX API parameter allowed the use of arbitrary values allowEPSS 0.4%CVE-2026-87080CRITICALNet::IDN::Punycode::PP versions before 2.590 for Perl decode a truncated label to a name containing a character it never encoded in decode_punycodeEPSS 0.4%CVE-2025-24345MEDIUMA vulnerability in the “Hosts” functionality of the web application of ctrlX OS allows a remote authenticated (low-privileged) attacker to mEPSS 0.4%CVE-2025-8873HIGHArista EOS Dataplane Denial of Service via Malformed IPsec PacketEPSS 0.4%CVE-2025-30415HIGHDenial of service due to improper handling of malformed input. The following products are affected: Acronis Cyber Protect Cloud Agent (LinuxEPSS 0.4%CVE-2025-20644MEDIUMIn Modem, there is a possible memory corruption due to incorrect error handling. This could lead to remote denial of service, if a UE has coEPSS 0.4%CVE-2025-46419MEDIUMWestermo WeOS 5 through 5.23.0 allows a reboot via a malformed ESP packet.EPSS 0.4%CVE-2022-22176HIGHJunos OS: In a scenario with dhcp-security and option-82 configured jdhcpd crashes upon receipt of a malformed DHCP packetEPSS 0.4%CVE-2026-111107HIGHFireware OS NULL Pointer Dereference in Management Interface Allows Unauthenticated Denial of ServiceEPSS 0.4%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 0.4%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-2026-100902HIGHBarco ClickShare CX-20 Gen2 Wallpaper Upload wallpaper improper validation of syntactic correctness of inputEPSS 0.3%CVE-2026-69211MEDIUMHttp4s: Set-Cookie rendering does not escape attribute delimitersEPSS 0.3%CVE-2026-88260HIGHAuthentication bypass using an alternate path or channel and Improper validation of syntactic correctness of input vulnerability in BrainzcoEPSS 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-2026-83728HIGHWindows Hyper-V Spoofing VulnerabilityEPSS 0.3%