Vulnerability · Published Sep 22, 2026 · Assigned by JFROG

CVE-2026-95624Tauri framework v2 malicious downgrade via allow_downgrades from frontend code

Medium 6.8

In plain English

A medium-severity improper access control in tauri-plugin-updater from Tauri. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).

Severity (CVSS 3.1)6.8Medium

Exploit odds (30 days)0.4%top 60.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Tauri	tauri-plugin-updater	2.8.0 – before 2.12.0

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

References

GHSA-rjc6-5hfg-grp9 (tauri-apps/tauri) issue-tracking
tauri-apps/tauri repository product
Move allowDowngrades from the check command to the plugin configuration patch
tauri-plugin-updater 2.12.0 release notes release-notes