CVE-2026-39412 | THREATINT

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.

PUBLISHED Reserved 2026-04-07 | Published 2026-04-08 | Updated 2026-04-09 | Assigner GitHub_M

MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

< 10.25.4

affected

References

github.com/...quidjs/security/advisories/GHSA-rv5g-f82m-qrvv exploit

github.com/...quidjs/security/advisories/GHSA-rv5g-f82m-qrvv

github.com/harttle/liquidjs/pull/869

github.com/...ommit/e743da0020d34e2ee547e1cc1a86b58377ebe1ce

github.com/harttle/liquidjs/releases/tag/v10.25.4

cve.org (CVE-2026-39412)

nvd.nist.gov (CVE-2026-39412)

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