ReDoS — 2 Technical Articles

Mar 26, 2026 · Backend Development

Why Go’s Regex Is 25× Slower Than Python – And When It Actually Wins

A detailed benchmark shows Go’s regexp engine is about 25 times slower than Python for a matching input, but in worst‑case scenarios Go remains microseconds while Python can take seconds, thanks to Go’s linear‑time Thompson NFA design versus Python’s exponential backtracking engine.

GoReDoSbenchmark

0 likes · 11 min read

Why Go’s Regex Is 25× Slower Than Python – And When It Actually Wins

MaGe Linux Operations

May 10, 2022 · Information Security

How Evil Regex Can Cripple Your Server: Understanding ReDoS Attacks

This article explains how maliciously crafted regular expressions can cause catastrophic backtracking, leading to Regular Expression Denial of Service (ReDoS) attacks, illustrates the problem with code examples, and provides practical mitigation strategies for developers.

Denial of ServiceReDoSregex

0 likes · 9 min read

How Evil Regex Can Cripple Your Server: Understanding ReDoS Attacks