CVE-2026-44646

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{"affected": [{"affectedData": [{"product": "liquidjs", "vendor": "harttle", "versions": [{"status": "affected", "version": "< 10.26.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "LiquidJS is a Shopify/GitHub Pages compatible template engine written in pure JavaScript. In versions 10.25.7 and below, Context.spawn() creates a child Context for the {% render %} tag but does not propagate the parent context's resolved ownPropertyOnly value, resulting in a silent bypass. The new context re-derives ownPropertyOnly from opts.ownPropertyOnly (the instance-level option), silently discarding any RenderOptions.ownPropertyOnly override that was supplied to parseAndRender(). As a result, a developer who runs a Liquid instance with the backwards-compatible ownPropertyOnly:false and then locks down an untrusted render with parseAndRender(..., { ownPropertyOnly: true }) still leaks prototype-chain properties from inside any {% render %} partial. This is a distinct exploit surface from the previously identified array-filter variants (where, reject, group_by, find, find_index, has) \u2014 the underlying root cause in Context.spawn() is shared, but {% render %} is a separately reachable sink that needs no filter usage. This issue has been fixed in version 10.26.0."}, {"lang": "es", "value": "LiquidJS es un motor de plantillas compatible con Shopify/GitHub Pages escrito en JavaScript puro. En las versiones 10.25.7 e inferiores, Context.spawn() crea un Context hijo para la etiqueta {% render %} pero no propaga el valor ownPropertyOnly resuelto del contexto padre, lo que resulta en un bypass silencioso. El nuevo contexto vuelve a derivar ownPropertyOnly de opts.ownPropertyOnly (la opci\u00f3n a nivel de instancia), descartando silenciosamente cualquier anulaci\u00f3n de RenderOptions.ownPropertyOnly que se haya proporcionado a parseAndRender(). Como resultado, un desarrollador que ejecuta una instancia de Liquid con la opci\u00f3n ownPropertyOnly:false compatible con versiones anteriores y luego restringe una renderizaci\u00f3n no confiable con parseAndRender(..., { ownPropertyOnly: true }) a\u00fan filtra propiedades de la cadena de prototipos desde dentro de cualquier parcial {% render %}. Esta es una superficie de exploit distinta de las variantes de filtro de array identificadas previamente (where, reject, group_by, find, find_index, has) - la causa ra\u00edz subyacente en Context.spawn() es compartida, pero {% render %} es un sumidero alcanzable por separado que no necesita el uso de filtros. Este problema ha sido solucionado en la versi\u00f3n 10.26.0."}], "id": "CVE-2026-44646", "lastModified": "2026-10-26T11:10:00.157", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-44646", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-18T13:45:29.819664Z", "version": "2.0.3"}}]}, "published": "2026-06-17T23:17:03.743", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/harttle/liquidjs/commit/dbbf6288030591bf6da28d8c1cce5a17bca97bb6"}, {"source": "security-advisories@github.com", "url": "https://github.com/harttle/liquidjs/releases/tag/v10.26.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/harttle/liquidjs/security/advisories/GHSA-9x9p-qf8f-mvjg"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/harttle/liquidjs/security/advisories/GHSA-9x9p-qf8f-mvjg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-693"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

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