CVE-2026-72925
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@swc/htmlnpm | < 1.15.47-nightly-20260729.1 | 1.15.47-nightly-20260729.1 |
swc_html_minifiercrates.io | < 59.0.0 | 59.0.0 |
Affected products
3- Range: <1.15.47-nightly-20260729.1, <59.0.0
- Range: <1.15.47-nightly-20260729.1
- Range: <59.0.0
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-5qr2-v392-m9g8ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-72925ghsaADVISORY
- github.com/swc-project/swc/commit/e1877b44bdac8abc9fd51e984d584f40f6999832nvdWEB
- github.com/swc-project/swc/pull/12080nvdWEB
- github.com/swc-project/swc/releases/tag/v1.15.47nvdWEB
- github.com/swc-project/swc/releases/tag/v1.15.47-nightly-20260729.1nvdWEB
- github.com/swc-project/swc/security/advisories/GHSA-5qr2-v392-m9g8nvdWEB
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