AIKIDO-2025-10843
streamdown is vulnerable to Inefficient Regular Expression Complexity
30
Low Risk
This Affects:
streamdownTL;DR
Affected versions of this package are vulnerable to regular expression denial of service (ReDoS) due to inefficient patterns in parse-incomplete-markdown.ts. These expressions allow crafted input to trigger excessive backtracking and degrade performance. The fix removes the vulnerable regexes and replaces them with safer, deterministic string-based parsing logic for handling incomplete links, images, and other partial markdown constructs, eliminating the risk of ReDoS.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
streamdown is vulnerable to Inefficient Regular Expression Complexity in versions 0.0.1 - 1.5.1.
How to fix this
Upgrade the streamdown 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.
I consent to receiving marketing communications based on Aikido’s Privacy Policy.
SOC 2Compliant
ISO 27001CompliantISO 42001Compliant
FedRAMPImplementing© All Intel data is openly available and commercially licensed.