Topic | v1 | created by jjones |

The regular expression denial of service (ReDoS) is an algorithmic complexity attack that produces a denial-of-service by providing a regular expression that takes a very long time to evaluate. The attack exploits the fact that most regular expression implementations have exponential time worst case complexity: the time taken can grow exponentially in relation to input size. An attacker can thus cause a program to spend an unbounded amount of time processing by providing such a regular expression, either slowing down or becoming unresponsive.


subtopic of Regular expression

A regular expression (shortened as regex or regexp; also referred to as rational expression) is a seq...

subtopic of Denial-of-service attack

In computing, a denial-of-service attack (DoS attack) is a cyber-attack in which the perpetrator seek...

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treated in Denial of Service (DoS) in | Snyk

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Denial of Service (DoS) affecting - SNYK-DOTNET-MICROSOFTASPNETCOREAPP-54184...

treated in Regular expression Denial of Service - ReDoS Software Attack | OWASP

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Regular expression Denial of Service - ReDoS on the main website for The OWASP Foundation. OWASP is a...