Falhas do tipo CWE-1321

429 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-2026-59876MEDIUMprotobufjs: Text Format string map parsing can mutate returned map object prototypeEPSS 0.3%CVE-2026-53609CRITICALApostrophe has Server-Side Prototype Pollution in apos.util.set via patch operators that leads to process-wide authorization bypassEPSS 0.3%CVE-2026-69200LOWnode-opcua: Prototype Pollution via internal `fieldsToJson()` implementation (Related to CVE-2024-57086)EPSS 0.3%CVE-2026-113659MEDIUMApostropheCMS: Client-side Prototype Pollution in apos.http.parseQuery leading to DOM-based XSS against authenticated usersEPSS 0.3%CVE-2025-57353MEDIUMThe Runtime components of messageformat package for Node.js before 3.0.2 contain a prototype pollution vulnerability. Due to insufficient vaEPSS 0.3%CVE-2025-55195HIGH@std/toml Prototype Pollution in Node.js and BrowserEPSS 0.3%CVE-2024-54156MEDIUMIn JetBrains YouTrack before 2024.3.52635 multiple merge functions were vulnerable to prototype pollution attackEPSS 0.3%CVE-2025-8083HIGHVuetify Prototype Pollution via Preset optionsEPSS 0.3%CVE-2026-34626MEDIUMAcrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)EPSS 0.3%CVE-2026-57926LOWIn JetBrains YouTrack before 2026.2.16593 the websandbox bridge was vulnerable to a prototype pollution attackEPSS 0.3%CVE-2026-2950MEDIUMlodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit`EPSS 0.3%CVE-2026-6594MEDIUMbrikcss merge prototype pollutionEPSS 0.3%CVE-2026-6621MEDIUM1024bit extend-deep index.js prototype pollutionEPSS 0.3%CVE-2026-14893HIGHIBM Instana Observability is affected by multiple Prototype Pollution within Instana Agent container imageEPSS 0.3%CVE-2026-44490MEDIUMAxios: DoS & Header Injection via Prototype Pollution Read-Side Gadgets in axios merge functionsEPSS 0.3%CVE-2025-53626MEDIUMpdfme has Sandbox Escape and Prototype Pollution vulnerabilities in pdfme expression evaluationEPSS 0.3%CVE-2026-107701HIGHdot-access through 1.0.0 Prototype Pollution via set() path argumentEPSS 0.3%CVE-2025-57320MEDIUMjson-schema-editor-visual is a package that provides jsonschema editor. A Prototype Pollution vulnerability in the setData and deleteData fuEPSS 0.3%CVE-2026-16008MEDIUMsagold json-schema-library propertyDependencies.ts parsePropertyDependencies prototype pollutionEPSS 0.3%CVE-2026-65913MEDIUMDOMPurify before 3.3.2 Prototype Pollution via USE_PROFILESEPSS 0.3%