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

Quick assessment

Affected
tauri-apps tauri
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tauri是Tauri开源的一个使用 Web 前端构建更小、更快、更安全的桌面应用程序。 Tauri 2.0至2.11.0版本存在安全漏洞，该漏洞源于is_local_url函数在Windows和Android上错误地将远程URL分类为受信任的本地源，可能导致攻击者利用自定义URI方案协议进行攻击。

AI Predicted 7.5 Difficulty: Easy EPSS 0.31% · P24

Affected Version Matrix 1

VendorProduct Version RangeStatus
tauri-apps tauri >= 2.0, < 2.11.1 affected
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I. Basic Information for CVE-2026-42184

Vulnerability Information
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Vulnerability Title
Tauri: Origin Confusion Allows Remote Pages to Invoke Local-Only IPC Commands
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Tauri 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tauri是Tauri开源的一个使用 Web 前端构建更小、更快、更安全的桌面应用程序。 Tauri 2.0至2.11.0版本存在安全漏洞，该漏洞源于is_local_url函数在Windows和Android上错误地将远程URL分类为受信任的本地源，可能导致攻击者利用自定义URI方案协议进行攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

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

II. Public POCs for CVE-2026-42184

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III. Intelligence Information for CVE-2026-42184

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Vendor Advisories for CVE-2026-42184 (1)

IV. Related Vulnerabilities

Same product: tauri
Same vendor: tauri-apps
Same weakness: CWE-918