RCE in Harttle Liquidjs

CVE-2026-45618

LiquidJS is a Shopify/GitHub Pages compatible template engine. Prior to version 10.26.0, it is possible to execute arbitrary code with crafted templates. Version 10.26.0 patches the issue.

Vulnerability class: RCE (Remote Code Execution)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (55.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-45618: held from 0.009 to 0.008.

EPSS over last 30 days · oldest: 0.009 · newest: 0.008 · change: -0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-45618?
CVE-2026-45618 is a critical-severity vulnerability in Harttle Liquidjs, classified under Code Injection. CVSS score: 10.0/10. Published 2026-08-11.
How severe is CVE-2026-45618?
Critical severity. CVSS v3 base score is 10.0 out of 10.