{"id":"CVE-2026-72925","aliases":["GHSA-5qr2-v392-m9g8"],"url":"https://o3.security/vulnerability/CVE-2026-72925","summary":"SWC HTML minifier may allow script element breakout when minifying embedded JSON","details":"SWC is a TypeScript / JavaScript compiler written in Rust. Prior to @swc/html 1.15.47-nightly-20260729.1 and swc_html_minifier 59.0.0, the minifyJson processing in crates/swc_html_minifier/src/lib.rs parsed and serialized attacker-controlled JSON in application/json and application/ld+json script elements without the escape_json_for_html_script behavior to re-escape less-than signs, allowing a closing script sequence to terminate the element early and execute script in the generated page's origin. This issue is fixed in @swc/html 1.15.47-nightly-20260729.1 and swc_html_minifier 59.0.0.","published":"2026-08-11T14:45:12.907Z","modified":"2026-08-13T04:03:05.044042356Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"crates.io","name":"swc_html_minifier","fixedVersion":"59.0.0"},{"ecosystem":"npm","name":"@swc/html","fixedVersion":"1.15.47-nightly-20260729.1"}],"fix":{"url":"https://github.com/swc-project/swc/commit/e1877b44bdac8abc9fd51e984d584f40f6999832","label":"swc-project/swc@e1877b4"},"references":[{"type":"WEB","url":"https://github.com/swc-project/swc/releases/tag/v1.15.47"},{"type":"WEB","url":"https://github.com/swc-project/swc/releases/tag/v1.15.47-nightly-20260729.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72925.json"},{"type":"ADVISORY","url":"https://github.com/swc-project/swc/security/advisories/GHSA-5qr2-v392-m9g8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72925"},{"type":"FIX","url":"https://github.com/swc-project/swc/commit/e1877b44bdac8abc9fd51e984d584f40f6999832"},{"type":"FIX","url":"https://github.com/swc-project/swc/pull/12080"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-13T04:03:05.044042356Z"}}