CVE-2026-39412
LiquidJS has an ownPropertyOnly bypass via sort_natural filter — prototype property information disclosure through sorting side-channel
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
8th
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.
| CWE | CWE-200 |
| Vendor | harttle |
| Product | liquidjs |
| Published | Apr 8, 2026 |
| Last Updated | Apr 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
harttle / liquidjs
< 10.25.4
References
github.com: https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv github.com: https://github.com/harttle/liquidjs/pull/869 github.com: https://github.com/harttle/liquidjs/commit/e743da0020d34e2ee547e1cc1a86b58377ebe1ce github.com: https://github.com/harttle/liquidjs/releases/tag/v10.25.4