SWC HTML minifier may allow script element breakout when minifying embedded JSON
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| swc-project | swc | affected |
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| @swc | html | affected |
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| swc-project | swc_html_minifier | affected |
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| Swc Project | Html |
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| Swc Project | Swc |
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| Swc Project | Swc Html Minifier |
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| Source | ID | Title |
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Github GHSA |
GHSA-5qr2-v392-m9g8 | SWC HTML minifier may allow script element breakout when minifying embedded JSON |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.338% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Swc Project
Swc Project html Swc Project swc Swc Project swc Html Minifier |
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| Vendors & Products |
Swc Project
Swc Project html Swc Project swc Swc Project swc Html Minifier |
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| Metrics |
ssvc
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| 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. | |
| Title | SWC HTML minifier may allow script element breakout when minifying embedded JSON | |
| Weaknesses | CWE-116 CWE-79 |
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| References |
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| Metrics |
cvssV3_1
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