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.
Affected products
liquidjs: liquidjs
References5
- github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-… ExploitVendor Advisory
- github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-… ExploitVendor Advisory
- github.com/harttle/liquidjs/commit/e743da0020d34e2ee547e1cc1a86… Patch
- github.com/harttle/liquidjs/pull/869 Issue TrackingProduct
- github.com/harttle/liquidjs/releases/tag/v10.25.4 Release Notes
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 0% percentile: 36 · as of 12 November 2026
- CWE
- CWE-200
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.