CVE-2026-95624

Tauri framework v2 malicious downgrade via allow_downgrades from frontend code

Published: Sep 22, 2026Updated: Sep 22, 2026 Sources: CVE List NVDCWE-284

6.8MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:HAttack Complexity

High

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:NAvailability

None

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Weaknesses

CWE-284

Affected Products

Tauri

oss-project·US

tauri-plugin-updaterMixed

Mobile Apps / cross-platform-framework

Exploitability

Official Patch Available

References

https://github.com/tauri-apps/tauri/security/advisories/GHSA-rjc6-5hfg-grp9

github.com

https://github.com/tauri-apps/tauri

github.com

https://github.com/tauri-apps/plugins-workspace/commit/1308bfa399b962b3977c767100a6339d1cbfdd20

github.com

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