LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.4, the sort_natural filter bypasses the ownPropertyOnly security option, allowing template authors to extract values of prototype-inherited properties through a sorting side-channel attack. Applications relying on ownPropertyOnly: true as a security boundary (e.g., multi-tenant template systems) are exposed to information disclosure of sensitive prototype properties such as API keys and tokens. This vulnerability is fixed in 10.25.4.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39412.json",
"cwe_ids": [
"CWE-200"
],
"cna_assigner": "GitHub_M"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "10.25.4"
}
],
"source": [
"CPE_RANGE",
"REFERENCES"
],
"cpe": "cpe:2.3:a:liquidjs:liquidjs:*:*:*:*:*:node.js:*:*"
}