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fix: prevent prototype pollution in Chart.defaults path APIs #12268

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fix: prevent prototype pollution in Chart.defaults path APIs #12268

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9 changes: 9 additions & 0 deletions src/core/core.defaults.js
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,12 @@ import {applyScaleDefaults} from './core.scale.defaults.js';
export const overrides = Object.create(null);
export const descriptors = Object.create(null);


function isValidScopePath(key) {
return !key.split('.').some((part) => (
part === '__proto__' || part === 'prototype' || part === 'constructor'
));
}
Comment on lines +11 to +15
/**
* @param {object} node
* @param {string} key
Expand All @@ -16,6 +22,9 @@ function getScope(node, key) {
if (!key) {
return node;
}
if (!isValidScopePath(key)) {
throw new Error(`Invalid defaults scope: ${key}`);
}
Comment on lines +25 to +27
Comment on lines +25 to +27
const keys = key.split('.');
for (let i = 0, n = keys.length; i < n; ++i) {
const k = keys[i];
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