Vulnerability in Harttle Liquidjs
CVE-2026-41311
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
- Harttle Liquidjs — versions < 10.25.7
- Liquidjs
Weakness classification (CWE)
References
- github.com/harttle/liquidjs/commit/e2311dfd6e82f73509308aa8a3a1fafc92e226f0 (Patch)
- github.com/harttle/liquidjs/releases/tag/v10.25.7 (Product, Release Notes)
- github.com/harttle/liquidjs/security/advisories/GHSA-4rc3-7j7w-m548 (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-41311?
- CVE-2026-41311 is a high-severity vulnerability in Harttle Liquidjs, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-05-09.
- How severe is CVE-2026-41311?
- High severity. CVSS v3 base score is 7.5 out of 10.