CVE-2026-39412
Medium
Description
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductLiquidjs
PublishedApr 8, 2026
First seenApr 8, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- liquidjs liquidjs10.25.4 or later
- liquidjs10.25.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| liquidjs liquidjs | v < 10.25.4 | 10.25.4 |
| liquidjsnpm | v < 10.25.4 | 10.25.4 |
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