NPM: probe-image-size: Quadratic-time Denial of Service in the SVG Parser

NPM: probe-image-size: Quadratic-time Denial of Service in the SVG Parser vulnerability discovered by ? in WordPress Npm probe-image-size versions = 7.3.0...

probe-image-size: Quadratic-time Denial of Service in the SVG Parser

Overview probe-image-size scans the SVG header with a searching regular expression, //. On input that contains many , the engine restarts the ^ scan at every position and runs to end of input each time, giving quadratic time complexity. Both the synchronous and the streaming parser are affected...

CVE-2026-104861

A flaw was found in probe-image-size. An unauthenticated remote attacker can exploit this vulnerability to cause a Denial of Service DoS by supplying specially crafted Scalable Vector Graphics SVG input. Due to inefficient pattern matching and input handling during SVG parsing, processing unclose...

EUVD-2026-91768

probe-image-size gets image dimensions without downloading the entire file. Prior to 7.4.0, lib/parsesync/svg.js and lib/parsestream/svg.js use the searching regular expression //, which repeatedly scans to the end of input when attacker-controlled data contains many less-than characters without ...

CVE-2026-104861 probe-image-size: Quadratic-time Denial of Service in the SVG Parser

probe-image-size gets image dimensions without downloading the entire file. Prior to 7.4.0, lib/parsesync/svg.js and lib/parsestream/svg.js use the searching regular expression //, which repeatedly scans to the end of input when attacker-controlled data contains many less-than characters without ...