mirror of
https://github.com/norandom/OpenUltraSAST.git
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34 lines
1.1 KiB
TypeScript
34 lines
1.1 KiB
TypeScript
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// Provenance: dayflower/popmark (fixed).
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// repo: dayflower/popmark
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// commit: e5ac407cef37c37178d440541ede301c838640fb
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// parent: 31d1ac79b4cfa3118597348e79800a6561115149
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// commit_url: https://github.com/dayflower/popmark/commit/e5ac407cef37c37178d440541ede301c838640fb
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// cve:
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// license: MIT
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// function: deepMergeInto
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// relpath: src/lexical-markdown/config/editorConfig.ts
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// provenance: agent
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// mechanism: prototype_pollution
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function deepMergeInto(
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target: Record<string, unknown>,
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source: Record<string, unknown>,
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): Record<string, unknown> {
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for (const key of Object.keys(source)) {
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// popmark patch: guard against prototype pollution (CodeQL).
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if (key === "__proto__" || key === "constructor" || key === "prototype") {
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continue;
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}
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const sourceValue = source[key];
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if (sourceValue === undefined) continue;
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if (isPlainObject(sourceValue)) {
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const targetValue = target[key];
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const nested = isPlainObject(targetValue) ? targetValue : {};
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target[key] = deepMergeInto(nested, sourceValue);
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} else {
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target[key] = sourceValue;
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}
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}
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return target;
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}
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