cwe-1333-redos

Fix ReDoS vulnerabilities in Java by replacing vulnerable regex patterns with secure implementations using possessive quantifiers or atomic groups to eliminate catastrophic backtracking and ensure deterministic code execution.

A Regular Expression Denial of Service (ReDoS) occurs when malicious input forces the Java regex engine into catastrophic backtracking, causing severe performance degradation or system crashes during input validation.

Secure Java regex patterns by refactoring vulnerable code to use Java's Pattern and Matcher classes with possessive quantifiers or atomic groups, transforming non-deterministic patterns into safe, non-backtracking implementations.

Yes, remediating CWE-1333 in Java code involves replacing vulnerable patterns with atomic groups or possessive quantifiers using Java's Pattern and Matcher classes to enforce deterministic transformations and prevent ReDoS attacks.

The best way to refactor vulnerable regular expressions for SAST security reviews is to apply deterministic code transformations that replace backtracking-prone patterns with secure alternatives like possessive quantifiers or atomic groups.