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fix vulnerable in #247
To fix the problem, we need to sanitize the user input before using it to construct the regular expression. The best way to do this is by using the
_.escapeRegExp
function from the lodash library, which escapes special characters in the input string. This ensures that the user cannot insert characters that have special meaning in regular expressions._.escapeRegExp
function to sanitize theconfig.exclude_regex
before constructing the regular expression.Suggested fixes powered by Zeroday Operation Research LLC.
References
OWASP: Regular expression Denial of Service - ReDoS
Wikipedia: ReDoS
npm: lodash
Common Weakness Enumeration: CWE-730
Common Weakness Enumeration: CWE-400