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-2026-15607MEDIUMtanstack db Alias Path select.ts select prototype pollutionEPSS 0.4%CVE-2026-27212CRITICALSwiper has a Prototype Pollution VulnerabilityEPSS 0.4%CVE-2026-71437MEDIUMMermaid Architecture diagrams are vulnerable to prototype pollutionEPSS 0.4%CVE-2025-57321CRITICALA Prototype Pollution vulnerability in the util-deps.addFileDepend function of magix-combine-ex versions thru 1.2.10 allows attackers to injEPSS 0.4%CVE-2025-57351MEDIUMA prototype pollution vulnerability exists in the ts-fns package versions prior to 13.0.7, where insufficient validation of user-provided keEPSS 0.4%CVE-2021-4278MEDIUMcronvel tree-kit prototype pollutionEPSS 0.4%CVE-2026-32701HIGHQwik has array method pollution in FormData processing, allowing type confusion and DoSEPSS 0.4%CVE-2026-15187MEDIUMenquirer Public Package API Enquirer.set prototype pollutionEPSS 0.4%CVE-2026-15598MEDIUMantv layout object.js setNestedValue prototype pollutionEPSS 0.4%CVE-2026-16266MEDIUMVersions of the package mongo-object before 3.0.3 are vulnerable to Prototype Pollution via the expandKey() function in util.js. An attackerEPSS 0.4%CVE-2025-55164HIGHcontent-security-policy-parser Prototype Pollution Vulnerability May Lead to RCEEPSS 0.4%CVE-2024-36577HIGHapphp js-object-resolver < 3.1.1 is vulnerable to Prototype Pollution via Module.setNestedProperty.EPSS 0.4%CVE-2024-36574MEDIUMA Prototype Pollution issue in flatten-json 1.0.1 allows an attacker to execute arbitrary code via module.exports.unflattenJSON (flatten-jsoEPSS 0.4%CVE-2026-34622HIGHAcrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)EPSS 0.4%CVE-2024-39018MEDIUMharvey-woo cat5th/key-serializer v0.2.5 was discovered to contain a prototype pollution via the function "query". This vulnerability allows EPSS 0.4%CVE-2026-78654MEDIUMcleverbrush framework/deep deepExtend.ts deepExtend prototype pollutionEPSS 0.4%CVE-2025-63703CRITICALnpm package parse-ini v1.0.6 is vulnerable to Prototype Pollution in index.js().EPSS 0.4%CVE-2023-45811HIGHPrototype pollution vulnerability leading to arbitrary code execution in synchrony deobfuscatorEPSS 0.4%CVE-2025-57323HIGHmpregular is a package that provides a small program development framework based on RegularJS. A Prototype Pollution vulnerability in the mpEPSS 0.4%CVE-2025-57326HIGHA Prototype Pollution vulnerability in the byGroupAndType function of sassdoc-extras v2.5.1 and before allows attackers to inject propertiesEPSS 0.4%