What’s Vulnerable › Vulnerabilities
CVE-2026-39859: LiquidJS has a renderFile() / parseFile() bypass configured root and allow arbitrary file read
- 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: none known
- Published: 2026-04-08 · updated 2026-07-24
- Weakness: CWE-22
Description
LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.3, liquidjs 10.25.0 documents root as constraining filenames passed to renderFile() and parseFile(), but top-level file loads do not enforce that boundary. A Liquid instance configured with an empty temporary directory as root can return the contents of arbitrary files. This vulnerability is fixed in 10.25.3.
Affected products
- harttle liquidjs: before 10.25.3 — fixed in 10.25.3
How to fix
Upgrade to a fixed version: harttle liquidjs 10.25.3. Check the vendor advisory for mitigations.
References
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