NPM: LiquidJS: ownPropertyOnly bypass for inherited array indices in first/last/join/reverse/slice/compact, `.first`/`.last`, negative index, and for-loop iteration

NPM: LiquidJS: ownPropertyOnly bypass for inherited array indices in first/last/join/reverse/slice/compact, .first/.last, negative index, and for-loop iteration vulnerability discovered by ? in WordPress Npm liquidjs versions = 10.27.1...

CVE-2026-106120

The LiquidJS template engine (prior to version 10.27.2 ) contains a vulnerability where the ownPropertyOnly setting can be bypassed. Specific operations—including negative indexing, .first, .last, join, reverse, slice, compact, and for-loop iterations—can read prototype-provided elements outside ...

CVE-2026-106120 LiquidJS: ownPropertyOnly bypass for inherited array indices in first/last/join/reverse/slice/compact, `.first`/`.last`, negative index, and for-loop iteration

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.27.2, enabling ownPropertyOnly does not consistently restrict inherited array indices because negative indexing, .first, .last, the first filter, the last filter, join, reverse, slice, compact, and...

CVE-2026-39412 LiquidJS has an ownPropertyOnly bypass via sort_natural filter — prototype property information disclosure through sorting side-channel

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.4, the sortnatural filter bypasses the ownPropertyOnly security option, allowing template authors to extract values of prototype-inherited properties through a sorting side-channel attack...

GHSA-RV5G-F82M-QRVV LiquidJS: ownPropertyOnly bypass via sort_natural filter — prototype property information disclosure through sorting side-channel

Summary The sortnatural 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 system...