CVE-2026-95624 Details
Description
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.
A vulnerability in the Tauri updater plugin allows for unauthorized downgrades of application versions. The issue arises because the 'check' IPC command accepts an 'allowDowngrades' boolean parameter from frontend JavaScript. When this parameter is set to true, it alters the version comparison logic, allowing older versions to be installed. This vulnerability is present in Tauri applications that use the updater plugin version 2.12.0 or prior.
Users can update to Tauri Updater Plugin version 2.12.0 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 22, 2026CISA-ADP
Assessed Sep 22, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/tauri-apps/plugins-workspace/commit/1308bfa399b962b3977c767100a6339d1cbfdd20 | [email protected] | Source CodeVendor |
| https://github.com/tauri-apps/plugins-workspace/releases/tag/updater-v2.12.0 | [email protected] | Release NotesVendor |
| https://github.com/tauri-apps/tauri | [email protected] | Source CodeVendor |
| https://github.com/tauri-apps/tauri/security/advisories/GHSA-rjc6-5hfg-grp9 | [email protected] | AdvisoryBroken LinkVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Tauri updater | All versions |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 22, 2026 | CVE Modified | CISA-ADP |
| Sep 22, 2026 | New CVE Received | [email protected] |