Weaknesses of type CWE-436

159 results

Conflito de Interpretação

Fraqueza em que diferentes componentes de um sistema interpretam a mesma entrada ou dado de forma diferente, causando inconsistência lógica. Um atacante explora essa divergência para contornar validações em um componente enquanto consegue efeito diferente em outro, comprometendo a segurança geral.

Example

Um firewall valida uma URL como segura interpretando-a de uma forma, mas o navegador a interpreta diferentemente e acessa um endpoint malicioso. Ou um validador servidor rejeita um caminho com '..' enquanto outro componente o normaliza de forma distinta, permitindo path traversal.

How to mitigate

Padronize a interpretação: use bibliotecas de parsing e normalização comuns entre todos os componentes, valide em múltiplas camadas com a mesma lógica, e teste casos de borda onde diferentes interpretadores possam divergir (encoding, caracteres especiais, formatos ambíguos).

CVE-2023-30541MEDIUMTransparentUpgradeableProxy clashing selector calls may not be delegated in @openzeppelin/contractsEPSS 0.8%CVE-2023-36456HIGHAuthentik lacks Proxy IP headers validationEPSS 0.8%CVE-2023-30536MEDIUMInsecure header validation in slim/psr7EPSS 0.7%CVE-2026-17084MEDIUMstringprep.map_table_b2() deviates from RFC 3454 Table B.2EPSS 0.7%CVE-2026-47767HIGHSymfony: SymfonyRuntime CVE-2024-50340 Patch Bypass: Web Requests Can Still Set APP_ENV/APP_DEBUG via parse_str/SAPI Argv MismatchEPSS 0.7%CVE-2026-13676HIGHfast-uri vulnerable to host confusion via failed IDN canonicalizationEPSS 0.7%CVE-2026-120213CRITICAL@fastify/http-proxy vulnerable to prefix escape via decoded route parametersEPSS 0.7%CVE-2026-73614HIGHNetwork-AI ClaudeHookBridge Deny Pattern Bypass via TruncationEPSS 0.7%CVE-2022-29254LOWFailed payment recorded has completed in silverstripe/silverstripe-omnipayEPSS 0.7%CVE-2024-38428CRITICALurl.c in GNU Wget through 1.24.5 mishandles semicolons in the userinfo subcomponent of a URI, and thus there may be insecure behavior in whiEPSS 0.7%CVE-2022-0011MEDIUMPAN-OS: URL Category Exceptions Match More URLs Than Intended in URL FilteringEPSS 0.7%CVE-2026-18427HIGH@fastify/static vulnerable to route guard bypass via non-canonical path segmentsEPSS 0.7%CVE-2026-73615HIGHNetwork-AI SandboxPolicy before 5.15.1 Blocklist Bypass via Quote MismatchEPSS 0.7%CVE-2022-36048MEDIUMIP address leak via image proxy bypass in Zulip ServerEPSS 0.6%CVE-2026-56669HIGHElysia: Inefficient Algorithmic Complexity and Interpretation ConflictEPSS 0.6%CVE-2024-24754LOWBref Body Parsing Inconsistency in Event-Driven FunctionsEPSS 0.6%CVE-2026-57580CRITICALauthentik: Account Takeover via SAML NameID Comment TruncationEPSS 0.6%CVE-2025-12816HIGHCVE-2025-12816EPSS 0.6%CVE-2026-104269HIGHModSecurity: RFC 2231 `filename*` Parameter Bypasses Multipart Filename Rules on RFC-Compliant Backends (Go, Python, Node, Java)EPSS 0.6%CVE-2026-109429HIGHMistral Vibe < 2.25.4 Bash Permission Bypass via ${var@P} Prompt-TransformEPSS 0.6%