Vulnerability Description
Tauri is a framework for building binaries for all major desktop platforms. From 2.0 to 2.11.0, a flaw in Tauri's is_local_url() function causes it to incorrectly classify remote URLs as trusted local origins on Windows and Android. On these systems, Tauri maps custom URI scheme protocols to http://<scheme>.localhost/ because those platforms' WebView implementations cannot serve custom URI schemes directly. The issue is that Tauri's check to see if the origin is local, only checks the first subdomain of the URL. An attacker can abuse this by hosting a page on a domain whose subdomain matches the custom scheme of the application. This vulnerability is fixed in 2.10.3.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tauri | Tauri | >= 2.0.0, < 2.10.3 |
Related Weaknesses (CWE)
References
- https://github.com/tauri-apps/tauri/security/advisories/GHSA-7gmj-67g7-phm9ExploitVendor Advisory
- https://github.com/tauri-apps/tauri/security/advisories/GHSA-7gmj-67g7-phm9ExploitVendor Advisory
FAQ
What is CVE-2026-42184?
CVE-2026-42184 is a vulnerability with a CVSS score of 8.8 (HIGH). Tauri is a framework for building binaries for all major desktop platforms. From 2.0 to 2.11.0, a flaw in Tauri's is_local_url() function causes it to incorrectly classify remote URLs as trusted local...
How severe is CVE-2026-42184?
CVE-2026-42184 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42184?
Check the references section above for vendor advisories and patch information. Affected products include: Tauri Tauri.