{"cve":{"cve_id":"CVE-2026-45617","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00385,"epss_percentile":0.30213,"epss_as_of":"2026-06-23","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.","published_at":"2026-06-17T22:14:38.396000Z","last_modified_at":null,"cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-1333"],"nvd_references":["https://github.com/harttle/liquidjs/security/advisories/GHSA-r7g9-xpmj-5fcq","https://github.com/harttle/liquidjs/commit/3616a744b9abeb425c217b340a2397d46176afb8","https://github.com/harttle/liquidjs/releases/tag/v10.26.0"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:30:33.078798Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"harttle","vendor_name":"harttle","product_slug":"liquidjs","product_name":"liquidjs","version_start":"< 10.26.0","version_start_inclusive":true,"version_end":"< 10.26.0","version_end_inclusive":true,"cpe23_uri":"cve5:harttle:liquidjs:< 10.26.0:< 10.26.0"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/harttle/liquidjs/security/advisories/GHSA-r7g9-xpmj-5fcq","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/harttle/liquidjs/commit/3616a744b9abeb425c217b340a2397d46176afb8","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/harttle/liquidjs/releases/tag/v10.26.0","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-06-17T22:14:38.396000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:54:40.246008Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:40.246008Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:40.246008Z","label":"CVSS score revised","source":"cvelistv5"}]}