CVE-2026-42184: CWE-918: Server-Side Request Forgery (SSRF) in tauri-apps tauri
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.
AI Analysis
Technical Summary
Tauri versions from 2.0 to before 2.11.1 contain a SSRF vulnerability (CWE-918) due to the is_local_url() function incorrectly identifying remote URLs as local on Windows and Android. This occurs because Tauri maps custom URI schemes to http://<scheme>.localhost/ to work around WebView limitations, but only checks the first subdomain, allowing attackers to exploit this by hosting pages on domains with matching subdomains. This misclassification can be abused to perform SSRF attacks. The issue is fixed starting with version 2.10.3.
Potential Impact
An attacker can exploit this vulnerability to trick the application into treating a remote URL as a trusted local origin, potentially enabling SSRF attacks. This could lead to unauthorized internal network requests or access to local resources depending on the application's context. The impact is rated medium with a CVSS score of 6.1.
Mitigation Recommendations
Upgrade Tauri to version 2.10.3 or later, where this vulnerability is fixed. Since the vulnerability affects versions >= 2.0 and < 2.11.1, applying the official fix by updating to a patched version is the recommended remediation. No other vendor advisory or patch information is provided, so check the official Tauri release notes for confirmation.
CVE-2026-42184: CWE-918: Server-Side Request Forgery (SSRF) in tauri-apps tauri
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 v4.0
Score 6.1medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Tauri versions from 2.0 to before 2.11.1 contain a SSRF vulnerability (CWE-918) due to the is_local_url() function incorrectly identifying remote URLs as local on Windows and Android. This occurs because Tauri maps custom URI schemes to http://<scheme>.localhost/ to work around WebView limitations, but only checks the first subdomain, allowing attackers to exploit this by hosting pages on domains with matching subdomains. This misclassification can be abused to perform SSRF attacks. The issue is fixed starting with version 2.10.3.
Potential Impact
An attacker can exploit this vulnerability to trick the application into treating a remote URL as a trusted local origin, potentially enabling SSRF attacks. This could lead to unauthorized internal network requests or access to local resources depending on the application's context. The impact is rated medium with a CVSS score of 6.1.
Mitigation Recommendations
Upgrade Tauri to version 2.10.3 or later, where this vulnerability is fixed. Since the vulnerability affects versions >= 2.0 and < 2.11.1, applying the official fix by updating to a patched version is the recommended remediation. No other vendor advisory or patch information is provided, so check the official Tauri release notes for confirmation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-25T01:53:21.583Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a170b54e29bf47b50c905f5
Added to database: 5/27/2026, 3:18:44 PM
Last enriched: 5/27/2026, 4:18:49 PM
Last updated: 5/29/2026, 8:35:05 AM
Views: 6
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