A flaw was found in SVGO, an SVG (Scalable Vector Graphics) Optimizer. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by submitting a specially crafted XML file. The application's failure to properly guard against XML entity expansion or recursion can lead to the Node.js process consuming excessive memory and crashing.

SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 2.1.0 to before version 2.8.1, from version 3.0.0 to before version 3.3.3, and before version 4.0.1, SVGO accepts XML with custom entities, without guards against entity expansion or recursion. This can result in a small XML file (811 bytes) stalling the application and even crashing the Node.js process with JavaScript heap out of memory. This issue has been patched in versions 2.8.1, 3.3.3, and 4.0.1.

SVGO, short for SVG Optimizer, is a Node.js library and command-line a ...

SVGO DoS through entity expansion in DOCTYPE (Billion Laughs)