Tauri Updater Plugin up to 2.11.x Version Comparator check allowDowngrades access control

Summaryinfo

A vulnerability was found in Tauri Updater Plugin up to 2.11.x. It has been classified as critical. Impacted is the function check of the component Version Comparator. Performing a manipulation of the argument allowDowngrades results in access control. This vulnerability is reported as CVE-2026-95624. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Tauri Updater Plugin up to 2.11.x. This affects the function check of the component Version Comparator. The manipulation of the argument allowDowngrades with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Tauri updater plugin's 'check' IPC command accepts an allowDowngrades boolean parameter directly from frontend JavaScript code. When set to true, it replaces the version comparator from "update must be newer" to "update must be different." Because the default permission set grants allow-check to the webview, any XSS in the app frontend can invoke this command and bypass the only anti-rollback protection the updater offers. Combined with another bug, this enables downgrade attacks without even needing to fake a higher version number.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-95624 since 09/22/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 2.12.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-84577). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Tauri

Name

• Updater Plugin

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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