CVE-2026-106120
MediumCVSS 6.0Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
LiquidJS prior to 10.27.2 does not consistently enforce ownPropertyOnly for inherited array indices, as negative indexing, .first, .last, first/last filters, join, reverse, slice, compact, and for-loop iteration can read prototype-provided elements outside readJSProperty(). An attacker able to influence prototype state can disclose values that ownPropertyOnly is expected to hide.
Risk Assessment
Data from array prototypes that should be inaccessible to templates may leak. In multi-tenant environments, this could expose information to other users.
Recommendation
Upgrade LiquidJS to version 10.27.2 or later. Avoid processing untrusted templates and inputs that could modify prototypes.
Other vulnerabilities in LiquidJS
See all- CVE-2026-45618Critical
LiquidJS is a Shopify/GitHub Pages compatible template engine. Prior to version 10.26.0, it is possible to execute arbitrary code with crafted templates. Version 10.26.0 patches the issue.
- CVE-2026-69222High
In LiquidJS before 10.27.2, the join filter in src/filters/array.ts computes complexity from array length and separator length instead of the total string length. The concat filter can cheaply double arrays, and join then materializes content while charging only for element count, allowing a template to exceed memoryLimit. The array_to_sentence_string filter has a similar defect, potentially crashing the process.
- CVE-2026-61556High
In LiquidJS from 10.26.0 to 10.27.1, the strip_html filter can enter an infinite loop when the input contains '<', has at least one preceding character, and no later '>'. This blocks template rendering and can cause denial of service with input as short as 'a<'.
- CVE-2026-55575High
In LiquidJS prior to version 10.27.1, the 'pop' array filter allocates a full clone of the input array without respecting the memoryLimit budget. This allows a template render like {{ huge_array | pop }} to allocate memory outside the configured limit.
- CVE-2026-45617High
LiquidJS is a Shopify/GitHub Pages compatible template engine that in versions 10.25.7 and below contains a flawed regex in the strip_html filter. This leads to ReDoS attacks via quadratic backtracking, blocking the Node.js event loop.
- CVE-2026-45357High
In versions 10.25.7 and below of the LiquidJS template engine, a vulnerability exists related to the date filter that improperly processes width specifiers, leading to unbounded string concatenation and bypassing memory and render limits.
- CVE-2026-44646Medium
In versions 10.25.7 and below, the LiquidJS template engine incorrectly propagates the ownPropertyOnly value from the parent context, leading to a silent bypass. As a result, developers may inadvertently expose prototype-chain properties in unsafe renders.
- CVE-2026-44645Medium
In versions 10.25.7 and below of the LiquidJS template engine, the renderLimit option can be fully bypassed by using an empty {% for %} or {% tablerow %} tag. This allows for unlimited rendering time consumption, potentially leading to DoS attacks.
- CVE-2026-44644Medium
LiquidJS, a template engine compatible with Shopify/GitHub Pages, has a vulnerability to XSS in versions 10.25.7 and below due to a flaw in the strip_html filter logic. This flaw allows bypassing HTML sanitization, enabling attackers to inject malicious code.
- CVE-2026-41311High
LiquidJS before version 10.25.7 is vulnerable to a DoS attack via circular block references in {% layout %} / {% block %}, causing memory exhaustion and Node.js process crash.
Original NVD description (English source)
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 for-loop iteration can read prototype-provided elements outside readJSProperty(). An attacker who can influence prototype state or inherited array-index data and cause templates to render affected operations can disclose values that ownPropertyOnly is expected to hide. Direct positive indexing and ordinary object prototype reads are blocked, but the alternate array paths remain affected. This issue is fixed in 10.27.2.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS