SWC HTML minifier may allow script element breakout when minifying embedded JSON

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0034, the 27th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 8 Sept 2026. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-5qr2-v392-m9g8
• OSV: GHSA-5qr2-v392-m9g8
• github.com/swc-project/swc/security/advisories/GHSA-5qr2-v392-m9g8
• nvd.nist.gov/vuln/detail/CVE-2026-72925
• github.com/swc-project/swc/pull/12080
• github.com/swc-project/swc/commit/e1877b44bdac8abc9fd51e984d584f40f6999832
• github.com/swc-project/swc
• github.com/swc-project/swc/releases/tag/v1.15.47
• github.com/swc-project/swc/releases/tag/v1.15.47-nightly-20260729.1

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.