AIKIDO-2025-10628
astro is vulnerable to Inefficient Regular Expression Complexity
15
Low Risk
This Affects:
astroTL;DR
Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) via the ROUTE_DYNAMIC_SPLIT regex pattern (/[(.+?(.+?)|.+?)]/), which exhibits super-linear time complexity due to nested lazy quantifiers and ambiguous matching paths; an attacker can exploit this by supplying a specially crafted string (e.g., a long sequence of characters followed by mismatched brackets) that forces the regex engine to process an exponential number of backtracking paths, ultimately consuming excessive CPU resources and stalling the application.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
astro is vulnerable to Inefficient Regular Expression Complexity in versions 4.4.14 - 5.13.5.
How to fix this
Upgrade the astro library to the patch version.
Are You Affected?
Connect your repositories to instantly see whether vulnerable or malicious packages exist in your codebase.
Free. No credit card required.
SOC 2Compliant
ISO 27001Compliant