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CVE-2026-41311— LiquidJS is vulnerable to Denial of Service via circular block reference in layout

Quick assessment

Affected
harttle liquidjs
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

liquidjs是Jun Yang个人开发者的一个简单、表达、安全且兼容 Shopify 的纯 JavaScript 模板引擎。 liquidjs 10.25.7之前版本存在安全漏洞，该漏洞源于循环块引用导致无限递归循环，消耗所有可用内存并导致Node.js进程崩溃，可能导致拒绝服务攻击。

CVSS 7.5 · High EPSS 0.59% · P48

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
harttle liquidjs < 10.25.7 affected
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I. Basic Information for CVE-2026-41311

Vulnerability Information
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Vulnerability Title
LiquidJS is vulnerable to Denial of Service via circular block reference in layout
Source: CVE Program / CVE List V5
Vulnerability Description
LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.7, a circular block reference in {% layout %} / {% block %} causes an infinite recursive loop, consuming all available memory (~4GB) and crashing the Node.js process with FATAL ERROR: JavaScript heap out of memory. This allows any user who can submit a Liquid template to perform a Denial of Service attack. This issue has been patched in version 10.25.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
liquidjs 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
liquidjs是Jun Yang个人开发者的一个简单、表达、安全且兼容 Shopify 的纯 JavaScript 模板引擎。 liquidjs 10.25.7之前版本存在安全漏洞，该漏洞源于循环块引用导致无限递归循环，消耗所有可用内存并导致Node.js进程崩溃，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
harttle liquidjs < 10.25.7 -

II. Public POCs for CVE-2026-41311

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9096 chars
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III. Intelligence Information for CVE-2026-41311

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Patches & Fixes for CVE-2026-41311 (1)

Vendor Advisories for CVE-2026-41311 (1)

Vendor Pages for CVE-2026-41311 (1)

IV. Related Vulnerabilities

Same product: liquidjs
Same vendor: harttle
Same weakness: CWE-674