{"id":"CVE-2026-45617","revision":"3386de6355f04b0d8541519dd48e267a","records":[{"revision":"3386de6355f04b0d8541519dd48e267a","observedAt":"2026-10-25T10:17:33.838+00:00","statement":{"source":"nvd","id":"CVE-2026-45617","aliases":[],"title":"LiquidJS is a Shopify/GitHub Pages compatible template engine written in pure JavaScript. In versions 10.25.7 and below, the built-in strip_html filter uses a regex containing four flawed lazy-quantified alternatives, leading to ReDoS via q…","description":"LiquidJS is a Shopify/GitHub Pages compatible template engine written in pure JavaScript. In versions 10.25.7 and below, the built-in strip_html filter uses a regex containing four flawed lazy-quantified alternatives, leading to ReDoS via quadratic backtracking. When the input contains many <script, <style, or <!-- opener tokens without matching closers, the V8 regex engine performs O(N²) backtracking, blocking the Node.js event loop. A single ~350 KB request ('<script'.repeat(50000)) stalls the process for ~10 seconds; cost grows quadratically with input size. The default memoryLimit: Infinity does not bound regex CPU, and even when configured strip_html only charges str.length to the limit — the regex itself runs unbounded.  A single unauthenticated request containing crafted untrusted input can cause severe event-loop blocking and CPU amplification that saturates Node.js workers while bypassing memoryLimit protections. This issue has been fixed in version 10.26.0.","state":0,"publishedAt":"2026-06-17T23:17:04.033+00:00","modifiedAt":"2026-06-22T18:27:30.807+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/harttle/liquidjs/commit/3616a744b9abeb425c217b340a2397d46176afb8","https://github.com/harttle/liquidjs/releases/tag/v10.26.0","https://github.com/harttle/liquidjs/security/advisories/GHSA-r7g9-xpmj-5fcq"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-45617","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-1333"],"productCriteria":[],"sourceDates":{"published":"2026-06-17T23:17:04.033","lastModified":"2026-06-22T18:27:30.807"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-45617","identifiers":["CVE-2026-45617"]},"retained":false,"historicalAffected":[]}],"coverage":[]}