8 lines
376 B
Plaintext
8 lines
376 B
Plaintext
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Regular expression injections occur when the application retrieves
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untrusted data and uses it as a regex to pattern match a string with it.
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Most regular expression search engines use `backtracking` to try all possible
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regex execution paths when evaluating an input. Sometimes this can lead to
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performance problems also referred to as `catastrophic backtracking situations`.
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