LiquidJS is vulnerable to Denial of Service via circular block reference in layout

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.

Scores

EPSS (exploitation in 30 days)

0.38% · top 68% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: poc · Automatable: yes · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• CWE-674: Uncontrolled Recursion (opens in a new tab)All about CWE-674 and its CVEs

Affected products

• harttle · liquidjs

  • affected < 10.25.7

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• npmliquidjsGHSA-4rc3-7j7w-m548 (opens in a new tab)

References (3)

• https://github.com/harttle/liquidjs/security/advisories/GHSA-4rc3-7j7w-m548 (opens in a new tab)x_refsource_CONFIRMexploit
• https://github.com/harttle/liquidjs/commit/e2311dfd6e82f73509308aa8a3a1fafc92e226f0 (opens in a new tab)x_refsource_MISC
• https://github.com/harttle/liquidjs/releases/tag/v10.25.7 (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-4rc3-7j7w-m548 (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-41311](https://trackcve.app/badge/CVE-2026-41311.svg)](https://trackcve.app/cve/CVE-2026-41311)

Record last updated 11 May 2026, 15:04 UTC.