Weaknesses of type CWE-1333

484 results

Expressão regular com complexidade exponencial (ReDoS)

A aplicação usa uma regex com padrão mal construído que, em certos inputs, força o engine a testar bilhões de combinações antes de confirmar a rejeição. Isso consome CPU até paralisar o serviço, já que o tempo cresce exponencialmente com o tamanho da entrada.

Example

Uma validação de email como `(a+)+b` aplicada a uma string longa sem 'b' no final faz o engine tentar todas as combinações possíveis de agrupamento de 'a's antes de falhar — um input de 50 caracteres pode levar minutos para processar.

How to mitigate

Use ferramentas como `redos`, `regex-checker` ou testes de desempenho para validar regexes antes do deploy. Para casos simples (email, URL), prefira validadores específicos em vez de regex; se usar regex, limite o tamanho da entrada e adicione timeouts no engine.

CVE-2025-8262MEDIUMyarnpkg Yarn hosted-git-resolver.js explodeHostedGitFragment redosEPSS 0.8%CVE-2025-25200CRITICALKoa has Inefficient Regular Expression ComplexityEPSS 0.8%CVE-2026-28356HIGHReDoS in multipart 1.3.0 - `parse_options_header()`EPSS 0.8%CVE-2026-71190HIGHIn OpenStack Swift through 2.38.0, the proxy server Accept header parser contains a regular expression vulnerable to catastrophic backtrackiEPSS 0.8%CVE-2024-8763HIGHRegular Expression Denial of Service (ReDoS) in lunary-ai/lunaryEPSS 0.8%CVE-2024-8789HIGHRegular Expression Denial of Service (ReDoS) in lunary-ai/lunaryEPSS 0.8%CVE-2024-8764HIGHImproper Authorization in lunary-ai/lunaryEPSS 0.8%CVE-2024-39249HIGHAsync <= 2.6.4 and <= 3.2.5 are vulnerable to ReDoS (Regular Expression Denial of Service) while parsing function in autoinject function. NOEPSS 0.8%CVE-2024-52524MEDIUMReDoS in Giskard Scan text perturbationEPSS 0.8%CVE-2024-8998HIGHRegular Expression Denial of Service (ReDoS) in lunary-ai/lunaryEPSS 0.8%CVE-2023-3210MEDIUMInefficient Regular Expression Complexity in GitLabEPSS 0.8%CVE-2026-4926HIGHpath-to-regexp vulnerable to Denial of Service via sequential optional groupsEPSS 0.8%CVE-2020-36830MEDIUMnescalante urlregex Backtracking index.js redosEPSS 0.8%CVE-2026-68749HIGHQuadratic regex backtracking in the html_sanitize_ex CSS scrubber allows CPU-exhaustion denial of serviceEPSS 0.8%CVE-2026-52778CRITICALYesWiki has Unsafe eval() in Formula Calculator - Remote Code Execution (RCE) & Denial of Service (DoS)EPSS 0.8%CVE-2022-23548MEDIUMDiscourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` andEPSS 0.8%CVE-2025-4215LOWgorhill uBlock Origin UI 1p-filters.js currentStateChanged redosEPSS 0.8%CVE-2024-52798HIGHpath-to-regexp Unpatched `path-to-regexp` ReDoS in 0.1.xEPSS 0.8%CVE-2018-25049LOWemail-existence index.js redosEPSS 0.8%CVE-2025-25290MEDIUM@octokit/request has a Regular Expression in fetchWrapper that Leads to ReDoS Vulnerability Due to Catastrophic BacktrackingEPSS 0.8%