Vulnerability · Published May 27, 2026 · Assigned by GitHub_M

CVE-2026-42184Tauri: Origin Confusion Allows Remote Pages to Invoke Local-Only IPC Commands

Medium 6.1

In plain English

A medium-severity server-side request forgery in tauri from tauri-apps. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 4.0)6.1Medium

Exploit odds (30 days)0.3%top 75.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
tauri-apps	tauri	>= 2.0, < 2.11.1

Weakness: CWE-918 · Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N

References

https://github.com/tauri-apps/tauri/security/advisories/GHSA-7gmj-67g7-phm9 x_refsource_CONFIRM