Is CVE-2026-39859 actively exploited?

CVE-2026-39859 has no public evidence of in-the-wild exploitation as of 2026-04-10.

What is the CVSS score for CVE-2026-39859?

CVE-2026-39859 has a CVSS score of 6.3 (MEDIUM severity). Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2026-39859?

Patch guidance is available from liquidjs security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-39859.

CVE-2026-39859 - remediation guidance & executive summary

Description

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.3, liquidjs 10.25.0 documents root as constraining filenames passed to renderFile() and parseFile(), but top-level file loads do not enforce that boundary. A Liquid instance configured with an empty temporary directory as root can return the contents of arbitrary files. This vulnerability is fixed in 10.25.3.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-22 · Path Traversal

Metadata

Primary Vendor: LIQUIDJS
Published: 4/8/2026
Last Modified: 4/10/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

liquidjs : liquidjs

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-39859. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-39859

View on NIST NVD

CVE-2026-39859 vulnerability