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Fix ReDoS in previous-map #1567

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merged 1 commit into from Apr 26, 2021
Merged

Fix ReDoS in previous-map #1567

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4 changes: 2 additions & 2 deletions lib/previous-map.js
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Expand Up @@ -48,11 +48,11 @@ class PreviousMap {
}

getAnnotationURL(sourceMapString) {
return sourceMapString.match(/\/\*\s*# sourceMappingURL=(.*)\*\//)[1].trim()
return sourceMapString.match(/\/\*\s*# sourceMappingURL=((?:(?!sourceMappingURL=).)*)\*\//)[1].trim()
}

loadAnnotation(css) {
let annotations = css.match(/\/\*\s*# sourceMappingURL=.*\*\//gm)
let annotations = css.match(/\/\*\s*# sourceMappingURL=(?:(?!sourceMappingURL=).)*\*\//gm)

if (annotations && annotations.length > 0) {
// Locate the last sourceMappingURL to avoid picking up
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