Quasar Framework: DOM Clobbering in Quasar openURL() SafariViewController Integration Causes Client-Side Denial of Service

{
  "id": "8256e8c1fd69009bcaf2470d0c1fb9a208c72b1105a50a007206d909d3d4bf74",
  "url": "https://osv.dev/vulnerability/GHSA-89vp-x45c-52cq",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Quasar Framework: DOM Clobbering in Quasar openURL() SafariViewController Integration Causes Client-Side Denial of Service",
    "summary": "### Summary A DOM Clobbering vulnerability exists in Quasar's `openURL()` utility when handling the iOS `SafariViewController` bridge. The vulnerable implementation only checks whether `window.SafariViewController` exists before invoking it as a native bridge object. An attacker who can inject HTML content containing a named element such as `` can cause the browser to expose that element as `window.SafariViewController`. When `openURL()` is later called in an iOS environment, Quasar incorrectly treats the DOM element as the native bridge object and attempts to invoke bridge methods that do not exist, resulting in: ``` TypeError: window.SafariViewController.isAvailable is not a function ``` This can cause client-side denial of service and break navigation-related workflows in Quasar applications. ### Details Quasar provides the `openURL()` utility to open external URLs. On iOS platforms, this utility supports integration with the native `SafariViewController` bridge. The vulnerable code is located in: ``` ui/src/utils/open-url/open-url.js ```` The affected logic is: ```javascript if (Platform.is.ios && window.SafariViewController !== void 0) { window.SafariViewController.isAvailable(available => { if (available) { window.SafariViewController.show({ url }, noop, reject) } }) } ```` The issue is that Quasar only verifies that `window.SafariViewController` is not `undefined`. It does not verify whether the value is the expected native bridge object or whether required methods suc",
    "evidence": "osv:GHSA-89vp-x45c-52cq",
    "products": [
      {
        "name": {
          "value": "quasar",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.32.2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "low",
    "structured": {
      "id": "GHSA-89vp-x45c-52cq",
      "aliases": [
        "CVE-2026-106101",
        "GHSA-89vp-x45c-52cq"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.32.2"
                }
              ]
            }
          ],
          "package": {
            "name": "quasar",
            "purl": "pkg:npm/quasar",
            "ecosystem": "npm"
          },
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-89vp-x45c-52cq/GHSA-89vp-x45c-52cq.json",
            "last_known_affected_version_range": "<= 2.32.1"
          }
        }
      ],
      "modified": "2026-10-07T20:30:06.740467291Z",
      "provider": "osv",
      "references": [
        "https://github.com/quasarframework/quasar/security/advisories/GHSA-89vp-x45c-52cq",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-106101",
        "https://github.com/quasarframework/quasar/commit/52d874bf55309dd3656fb02aed033ab025d477ec",
        "https://github.com/quasarframework/quasar",
        "https://github.com/quasarframework/quasar/releases/tag/quasar-v2.32.2"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-843"
        ],
        "severity": "LOW",
        "github_reviewed": true,
        "nvd_published_at": "2026-10-06T17:17:24Z",
        "github_reviewed_at": "2026-10-07T20:23:47Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-106101",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 97236,
  "published_at": "2026-10-07T20:23:47+00:00"
}