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-2024-4056HIGHDenial of service condition in M-Files ServerEPSS 0.8%CVE-2024-23732HIGHThe JSON loader in Embedchain before 0.1.57 allows a ReDoS (regular expression denial of service) via a long string to json.py.EPSS 0.8%CVE-2026-82617CRITICALApache OpenNLP, Apache OpenNLP: ReDoS / stack exhaustion in RegexNameFinderFactory built-in EMAIL and URL patternsEPSS 0.8%CVE-2024-41655HIGHTF2 Item Format Regular Expression Denial of Service vulnerabilityEPSS 0.8%CVE-2026-28356HIGHReDoS in multipart 1.3.0 - `parse_options_header()`EPSS 0.8%CVE-2025-27220MEDIUMIn the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method.EPSS 0.8%CVE-2023-6688MEDIUMInefficient Regular Expression Complexity in GitLabEPSS 0.8%CVE-2023-6682MEDIUMInefficient Regular Expression Complexity in GitLabEPSS 0.8%CVE-2024-46242HIGHAn issue in the validate_email function in CTFd/utils/validators/__init__.py of CTFd 3.7.3 allows attackers to cause a Regular expression DeEPSS 0.8%CVE-2024-12720MEDIUMRegular Expression Denial of Service (ReDoS) in huggingface/transformersEPSS 0.7%CVE-2024-10955MEDIUMReDoS (Regular Expression Denial of Service) in gaizhenbiao/chuanhuchatgptEPSS 0.7%CVE-2024-12388MEDIUMRegular Expression Denial of Service (ReDoS) in binary-husky/gpt_academicEPSS 0.7%CVE-2026-72818HIGHNLTK TweetTokenizer URL Pattern Backtracks Catastrophically on Naked-Domain-Like InputEPSS 0.7%CVE-2026-62317HIGHLogto: ReDoS via unescaped user input in email subaddressing regex (blockSubaddressing)EPSS 0.7%CVE-2026-2327MEDIUMVersions of the package markdown-it from 13.0.0 and before 14.1.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the EPSS 0.7%CVE-2025-61581HIGHApache Traffic Control: ReDoS issue in Traffic Router configurationEPSS 0.7%CVE-2025-2833MEDIUMzhangyd-c OneBlog HTTP Header redosEPSS 0.7%CVE-2023-3909MEDIUMInefficient Regular Expression Complexity in GitLabEPSS 0.7%CVE-2026-92114MEDIUMa2ui-project a2ui Basic Catalog safe_regex.ts redosEPSS 0.7%CVE-2022-34402MEDIUMDell Wyse ThinOS 2205 contains a Regular Expression Denial of Service Vulnerability in UI. An admin privilege attacker could potentially expEPSS 0.7%