Falhas do tipo CWE-1333

484 resultados

Expressão regular com complexidade exponencial (ReDoS)

A aplicação usa uma regex que, em certos padrões de entrada, causa backtracking excessivo e consome CPU de forma exponencial. O motor regex tenta múltiplas combinações de correspondência antes de falhar ou suceder, podendo travar a aplicação ou deixá-la lenta demais para responder.

Exemplo

Um validador de email com regex como `(a+)+b` recebe a string `aaaaaaaaaaaaaaaaaaaaX` (sem o caractere final esperado). O motor testa todas as combinações de agrupamento do `a` repetido, levando tempo exponencial em relação ao tamanho da entrada.

Como mitigar

Use bibliotecas de parsing ou validação especializadas em vez de regex complexas (ex: bibliotecas de email ou URL). Se regex for necessária, teste com inputs longos malformados, limpe a entrada antes, ou use engines regex com proteção contra backtracking (como a do Rust).

CVE-2024-22363HIGHSheetJS Community Edition before 0.20.2 is vulnerable.to Regular Expression Denial of Service (ReDoS).EPSS 0.8%CVE-2025-25200CRITICALKoa has Inefficient Regular Expression ComplexityEPSS 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%CVE-2025-25283HIGHparse-duraton vulnerable to Regex Denial of Service that results in event loop delay and out of memoryEPSS 0.8%