CVE-2026-95624 Tauri framework v2 malicious downgrade via allow_downgrades from frontend code
Attackers can bypass updater anti-rollback protections via frontend code, enabling downgrade attacks that may lead to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-95624?
CVE-2026-95624 is a medium-severity vulnerability in tauri-plugin-updater, published on 22 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Weakness: CWE-284
Which versions are affected by CVE-2026-95624?
How do I fix CVE-2026-95624?
No fix has been published for CVE-2026-95624 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-95624 being exploited?
There is no known exploitation of CVE-2026-95624 in the wild and no public exploit code.
Sources
Also known as GHSA-rjc6-5hfg-grp9, GHSA-wqjv-7vqv-x3mj.