CVE-2026-39412
LiquidJS has an ownPropertyOnly bypass via sort_natural filter — prototype property information disclosure through sorting side-channel
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.
INFO
Published Date :
April 8, 2026, 8:16 p.m.
Last Modified :
July 24, 2026, 9:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update LiquidJS to version 10.25.4 or later.
- Review and validate template author security assumptions.
- Disable or restrict the sort_natural filter if necessary.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-39412.
| URL | Resource |
|---|---|
| https://github.com/harttle/liquidjs/commit/e743da0020d34e2ee547e1cc1a86b58377ebe1ce | Patch |
| https://github.com/harttle/liquidjs/pull/869 | Issue Tracking Product |
| https://github.com/harttle/liquidjs/releases/tag/v10.25.4 | Release Notes |
| https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv | Exploit Vendor Advisory |
| https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-39412 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-39412
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-39412 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-39412 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 24, 2026
Action Type Old Value New Value Added Translation Title: LiquidJS de Harttle, Description: LiquidJS es un motor de plantillas compatible con Shopify / GitHub Pages en JavaScript puro. Antes de la 10.25.4, el filtro sort_natural omite la opción de seguridad ownPropertyOnly, permitiendo a los autores de plantillas extraer valores de propiedades heredadas del prototipo a través de un ataque de canal lateral de ordenación. Las aplicaciones que dependen de ownPropertyOnly: true como límite de seguridad (por ejemplo, sistemas de plantillas multi-inquilino) están expuestas a la revelación de información de propiedades sensibles del prototipo, como claves API y tokens. Esta vulnerabilidad está corregida en la 10.25.4. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'harttle', 'product': 'liquidjs', 'versions': [{'status': 'affected', 'version': '< 10.25.4'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-39412', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-04-09T13:53:22.871378Z'} -
Initial Analysis by [email protected]
Apr. 20, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:liquidjs:liquidjs:*:*:*:*:*:node.js:*:* versions up to (excluding) 10.25.4 Added Reference Type GitHub, Inc.: https://github.com/harttle/liquidjs/commit/e743da0020d34e2ee547e1cc1a86b58377ebe1ce Types: Patch Added Reference Type GitHub, Inc.: https://github.com/harttle/liquidjs/pull/869 Types: Issue Tracking, Product Added Reference Type GitHub, Inc.: https://github.com/harttle/liquidjs/releases/tag/v10.25.4 Types: Release Notes Added Reference Type CISA-ADP: https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 09, 2026
Action Type Old Value New Value Added Reference https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv -
New CVE Received by [email protected]
Apr. 08, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-200 Added Reference https://github.com/harttle/liquidjs/commit/e743da0020d34e2ee547e1cc1a86b58377ebe1ce Added Reference https://github.com/harttle/liquidjs/pull/869 Added Reference https://github.com/harttle/liquidjs/releases/tag/v10.25.4 Added Reference https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv