Weaknesses of type CWE-203

350 results

Discrepância observável em resposta de erro

A aplicação expõe informações diferentes em suas respostas de erro dependendo de condições internas (ex: usuário existe ou não, senha correta ou não, arquivo encontrado ou não), permitindo que um atacante deduza informações sensíveis através de análise de timing, mensagens ou códigos de status. O risco está em vazar informações que não deveriam ser públicas.

Example

Um endpoint de login retorna 'Usuário não encontrado' quando o email não existe, mas 'Senha incorreta' quando o email existe mas a senha está errada. Um atacante usa essas mensagens para enumerar emails válidos da plataforma sem precisar saber a senha de ninguém.

How to mitigate

Padronize todas as respostas de erro para o mesmo status HTTP e mensagem genérica (ex: sempre 'Credenciais inválidas'). Use timing constante nas verificações criptográficas e operações sensíveis para evitar ataques por timing side-channel.

CVE-2024-54476MEDIUMThe issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.2, macOS Sonoma 14.7.2, macOS Ventura 13.7.2. An app mEPSS 0.3%CVE-2025-46720LOWKeystone has an unintended `isFilterable` bypass that can be used as an oracle to match hidden fieldsEPSS 0.3%CVE-2025-23182MEDIUMUBtech – CWE-203: Observable DiscrepancyEPSS 0.3%CVE-2026-3579LOWNon-constant time multiplication subroutine __muldi3 on RISC-V RV32IEPSS 0.3%CVE-2026-14112MEDIUMInappropriate implementation in Enterprise in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who convinced a user to engage EPSS 0.3%CVE-2026-37064MEDIUMUser enumeration in /vfm-admin/ajax/usr-check.php in Veno File Manager Project 4.4.9 allows an unauthenticated attacker to enumerate the appEPSS 0.3%CVE-2025-39665MEDIUMLivestatus Injection in dynmapsEPSS 0.3%CVE-2026-87518MEDIUMObservable discrepancy in Safebrowsing in Google Chrome on on iOS prior to 153.0.8010.36 allowed a remote attacker who had compromised the rEPSS 0.3%CVE-2026-74954HIGHInformation disclosure due to side-channel in the Storage: Cache API componentEPSS 0.3%CVE-2024-41760LOWIBM Common Cryptographic Architecture information disclosureEPSS 0.3%CVE-2025-11932LOWTiming Side-Channel in PSK Binder VerificationEPSS 0.3%CVE-2026-72632HIGHObservable Discrepancy in Kibana Fleet Leading to Disclosure of Elastic Agent Elasticsearch API KeysEPSS 0.3%CVE-2026-23621MEDIUMGFI MailEssentials AI < 22.4 ListServer.IsPathExist() Absolute Directory Traversal to File EnumerationEPSS 0.3%CVE-2026-74961CRITICALSide-channel in the Web Audio componentEPSS 0.3%CVE-2025-5802MEDIUMUsername Enumeration via Self Registration Flow in Multiple WSO2 Products Allows User Account DiscoveryEPSS 0.3%CVE-2025-1396LOWUsername Enumeration in Multiple WSO2 Products with Multi-Attribute Login EnabledEPSS 0.3%CVE-2024-38465MEDIUMShenzhen Guoxin Synthesis image system before 8.3.0 allows username enumeration because of the response discrepancy of incorrect versus erroEPSS 0.3%CVE-2021-33149MEDIUMObservable behavioral discrepancy in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via EPSS 0.2%CVE-2026-87459MEDIUMObservable discrepancy in Select in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain sensitive information via a craEPSS 0.2%CVE-2022-46724LOWThis issue was addressed by restricting options offered on a locked device. This issue is fixed in iOS 16.4 and iPadOS 16.4. A person with pEPSS 0.2%