Publish GHSA-wmfp-5q7x-987x

Author: advisory-database[bot]

advisories/github-reviewed/2026/03/GHSA-wmfp-5q7x-987x/GHSA-wmfp-5q7x-987x.json

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+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-wmfp-5q7x-987x",
+  "modified": "2026-03-10T01:04:34Z",
+  "published": "2026-03-10T01:04:34Z",
+  "aliases": [
+    "CVE-2026-30952"
+  ],
+  "summary": "liquidjs has a path traversal fallback vulnerability",
+  "details": "### Impact\nThe `layout`, `render`, and `include` tags allow arbitrary file access via absolute paths (either as string literals or through Liquid variables when `dynamicPartials: true` is enabled). 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.\n\n### Patches\nThe issue is fixed via [#855](https://github.com/harttle/liquidjs/pull/855) and published version 10.25.0 on npm.\n\n### Workarounds\n#### Change the files in build time\nIn build time, through Shell script or Webpack `string-replace-loader`, change the file content of correxponding file (depending on your package `type`, for CommonJS it's `dist/liquid.node.js`) under `dist/`, \n\n```diff\n  if (fs.fallback !== undefined) {\n    const filepath = fs.fallback(file)\n-   if (filepath !== undefined) yield filepath\n+   if (filepath !== undefined) {\n+     for (const dir of dirs) {\n+       if (!enforceRoot || this.contains(dir, filepath)) {\n+         yield filepath\n+         break\n+       }\n+     }\n    }\n  }\n```\n\n#### Overriding by `fs` LiquidJS option\nAdding a [`fs` option](https://liquidjs.com/api/interfaces/FS.html) to override the [default `fs` implementation](https://github.com/harttle/liquidjs/blob/1b85fdaa9c535021f7030a239a64003af26d31b5/src/fs/fs-impl.ts#L36-L40):\n\n```javascript\nconst { statSync, readFileSync, promises: { stat, readFile } } = require('fs')\nconst { resolve, extname, dirname, sep } = require('path')\n\nconst fs = {\n    exists: async (fp) => { try { await stat(fp); return true; } catch { return false } },\n    existsSync: (fp) => { try { statSync(fp); return true } catch { return false } },\n    resolve: (root, file, ext) => resolve(root, file + (extname(file) ? '' : ext)),\n    contains: (root, file) => {\n        const r = resolve(root)\n        return file.startsWith(r.endsWith(sep) ? r : r + sep)\n    },\n    readFile: (fp) => readFile(fp, 'utf8'),\n    readFileSync: (fp) => readFileSync(fp, 'utf8'),\n    fallback: () => undefined,\n    dirname,\n    sep\n};\n\nconst engine = new Liquid({ fs })\n```\n\n### References\nDiscussions: https://github.com/harttle/liquidjs/pull/851\nCode fix: https://github.com/harttle/liquidjs/pull/855",
+  "severity": [
+    {
+      "type": "CVSS_V4",
+      "score": "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"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "npm",
+        "name": "liquidjs"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "10.25.0"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/harttle/liquidjs/security/advisories/GHSA-wmfp-5q7x-987x"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/harttle/liquidjs/pull/851"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/harttle/liquidjs/pull/855"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/harttle/liquidjs/commit/3cd024d652dc883c46307581e979fe32302adbac"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/harttle/liquidjs"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-22"
+    ],
+    "severity": "HIGH",
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-03-10T01:04:34Z",
+    "nvd_published_at": null
+  }
+}