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CVE-2026-42184

Tauri server-side request forgery (SSRF)

8.8 HIGHPublic exploitEPSS 0.39%
  1. Published27 May 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Tauri≥ 2.0.0 < 2.10.3

Remediation

Fixed in
Tauri≥ 2.10.3

Frequently asked

Is CVE-2026-42184 being actively exploited?

CVE-2026-42184 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.39%.

How severe is CVE-2026-42184?

CVE-2026-42184 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.39% probability of exploitation.

Which products are affected by CVE-2026-42184?

Affected products include Tauri.

How do I fix CVE-2026-42184?

Upgrade affected software to a fixed version, for example Tauri 2.10.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-42184 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.