Security

ReDoS

ReDoS (regular expression denial of service) is an attack where a pattern or input forces a backtracking regex engine into extreme amounts of work, tying up CPU and making a service unresponsive.

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Why Untrusted Regex Patterns Are a Code Execution Risk

Untrusted regex patterns can corrupt memory while they compile, as GitLab CVE-2026-97229 showed. Learn how to design features that accept them safely.

intermediate 5 min read

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