CVE-2026-33285CWE-20CWE-400

LiquidJS: memoryLimit Bypass through Negative Range Values Leads to Process Crash

High · published March 26, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
47.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00595 · 47.7th percentile
Weaknesses
CWE-20 · Improper Input Validation; CWE-400 · Uncontrolled Resource Consumption
Published
2026-03-26T00:34Z
EPSS history
Timeline
  • 26 MAR 00:34Z
    LiquidJS: memoryLimit Bypass through Negative Range Values Leads to Process Crash
    cvelistv5