What’s Vulnerable › Vulnerabilities

CVE-2026-33285: LiquidJS: memoryLimit Bypass through Negative Range Values Leads to Process Crash

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-26 · updated 2026-06-17
• Weakness: CWE-20

Description

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, LiquidJS's `memoryLimit` security mechanism can be completely bypassed by using reverse range expressions (e.g., `(100000000..1)`), allowing an attacker to allocate unlimited memory. Combined with a string flattening operation (e.g., `replace` filter), this causes a V8 Fatal error that crashes the Node.js process, resulting in complete denial of service from a single HTTP request. Version 10.25.1 patches the issue.

Affected products

• harttle liquidjs: before 10.25.1 — fixed in 10.25.1

How to fix

Upgrade to a fixed version: harttle liquidjs 10.25.1. Check the vendor advisory for mitigations.

References

• https://github.com/harttle/liquidjs/commit/95ddefc056a11a44d9e753fd47a39db2c241e578
• https://github.com/harttle/liquidjs/security/advisories/GHSA-9r5m-9576-7f6x

Get alerted when CVE-2026-33285 or the next vulnerability affects your stack