Falhas do tipo CWE-1321

378 resultados

Poluição de Protótipo

Fraqueza que permite a um atacante modificar o protótipo de objetos JavaScript, afetando todas as instâncias presentes e futuras da aplicação. Ocorre quando código não valida ou filtra adequadamente dados que serão mesclados em objetos, permitindo injeção de propriedades maliciosas como '__proto__' ou 'constructor.prototype'.

Exemplo

Uma API REST que aceita JSON e faz merge direto em um objeto de configuração global (ex: `Object.assign(config, userInput)`) permite que um atacante envie {"__proto__.isAdmin": true} para ganhar privilégios em todos os usuários conectados.

Como mitigar

Valide e sanitize entradas antes de atribuições em objetos; use Object.create(null) para criar objetos sem protótipo; implemente blocklists explícitas para propriedades permitidas; considere bibliotecas especializadas em deep merge seguro (como lodash com opções de segurança).

CVE-2022-41713MEDIUMdeep-object-diff 1.1.0 - Prototype PollutionEPSS 0.7%CVE-2025-5150MEDIUMdocarray Web API torch_dataset.py __getitem__ prototype pollutionEPSS 0.7%CVE-2026-18420HIGHRCE via Prototype Pollution in OpenSearch DashboardsEPSS 0.7%CVE-2026-25150CRITICALPrototype Pollution via FormData Processing in Qwik CityEPSS 0.7%CVE-2026-59206HIGHn8n: Prototype Pollution via Workflow Credentials Leads to Unauthenticated User and Project EnumerationEPSS 0.7%CVE-2024-21548HIGHVersions of the package bun after 0.0.12 and before 1.1.30 are vulnerable to Prototype Pollution due to improper input sanitization. An attaEPSS 0.7%CVE-2024-36572CRITICALPrototype pollution in allpro form-manager 0.7.4 allows attackers to run arbitrary code and cause other impacts via the functions setDefaultEPSS 0.7%CVE-2025-48054MEDIUMRadashi Vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')EPSS 0.6%CVE-2022-42743MEDIUMdeep-parse-json 1.0.2 - Prototype PollutionEPSS 0.6%CVE-2022-41714MEDIUMfastest-json-copy 1.0.1 - Prototype PollutionEPSS 0.6%CVE-2024-45435CRITICALChartist 1.x through 1.3.0 allows Prototype Pollution via the extend function.EPSS 0.6%CVE-2025-27597HIGHVue I18n Prototype Pollution in `handleFlatJson`EPSS 0.6%CVE-2026-42041MEDIUMAxios: Authentication Bypass via Prototype Pollution Gadget in `validateStatus` Merge StrategyEPSS 0.6%CVE-2025-3982MEDIUMnortikin Sverchok Set Property Mk2 Node getsetprop_mk2.py SvSetPropNodeMK2 prototype pollutionEPSS 0.6%CVE-2026-53676HIGHThingsBoard contains a prototype pollution vulnerability which may lead to arbitrary code execution within a sandboxed context by a user whoEPSS 0.6%CVE-2023-2582MEDIUMA prototype pollution vulnerability exists in Strikingly CMS which can result in reflected cross-site scripting (XSS) in affected applicatioEPSS 0.6%CVE-2023-6293HIGHPrototype Pollution in robinbuschmann/sequelize-typescriptEPSS 0.6%CVE-2026-42044MEDIUMAxios: Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver`EPSS 0.6%CVE-2024-45277MEDIUMPrototype Pollution vulnerability in SAP HANA ClientEPSS 0.6%CVE-2026-33993MEDIUMLocutus has Prototype Pollution via __proto__ Key Injection in unserialize()EPSS 0.6%