CVE-2026-72925 SWC HTML minifier may allow script element breakout when minifying embedded JSON

SWC is a TypeScript / JavaScript compiler written in Rust. Prior to @swc/html 1.15.47-nightly-20260729.1 and swchtmlminifier 59.0.0, the minifyJson processing in crates/swchtmlminifier/src/lib.rs parsed and serialized attacker-controlled JSON in application/json and application/ld+json script...

CVE-2026-72925

CVE-2026-72925 affects SWC’s HTML minification path. The issue in minifyJson within crates/swc_html_minifier/src/lib.rs allowed attacker-controlled JSON inside application/json and application/ld+json script elements to be parsed/serialized without proper HTML escaping, enabling a closing script ...