{"id":"CVE-2026-44645","revision":"7883718eef644b42a56c4a64c9987dec","records":[{"revision":"7883718eef644b42a56c4a64c9987dec","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-44645","aliases":[],"title":"LiquidJS has a renderLimit DoS guard bypass via empty `{% for %}` body","description":"LiquidJS is a Shopify/GitHub Pages compatible template engine written in pure JavaScript. In versions 10.25.7 and below, the renderLimit option can be fully bypassed by a {% for %} (or {% tablerow %}) tag whose body is empty. The renderLimit option is documented in docs/source/tutorials/dos.md as the mechanism that \"mitigates this by limiting the time consumed by each render() call.\" The per-iteration time check is reached only when the body contains at least one template node, so a template such as {%- for i in (1..N) -%}{%- endfor -%} iterates the full collection without ever consulting renderLimit. With a configured renderLimit of 50 ms, a single parseAndRenderSync call has been observed to consume 2.26 seconds (~45× over the limit) and scales linearly with N up to memoryLimit, allowing a low-privileged template author to wedge an event-loop thread for an attacker-chosen duration. Deployments that rely on a finite renderLimit for DoS protection (common in multi-tenant template-authoring environments) can still be forced by a single crafted template to monopolize a Node.js event-loop worker for attacker-controlled time, potentially stalling in-flight requests, with availability impact only. This issue has been fixed in version 10.26.0.","state":0,"publishedAt":"2026-06-17T22:08:19.354+00:00","modifiedAt":"2026-06-18T19:05:32.418+00:00","affected":[{"ecosystem":"Vendor product","name":"liquidjs","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"harttle\",\n                    \"product\": \"liquidjs\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 10.26.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/harttle/liquidjs/security/advisories/GHSA-8xx9-69p8-7jp3","https://github.com/harttle/liquidjs/commit/5b9c3469085e01c79e2d0af28e2a13f730e1793d","https://github.com/harttle/liquidjs/releases/tag/v10.26.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-44645","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-44645","identifiers":["CVE-2026-44645"]},"retained":false,"historicalAffected":[]}],"coverage":[]}