CVE-2026-95624
mediumThe Tauri updater plugin's 'check' IPC command accepts an allowDowngrades boolean parameter directly from frontend JavaScript code.
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/tauri-apps/plugins-workspace/commit/1308bfa399b962b3977c767100a6339d1cb... reefs@jfrog.com
- https://github.com/tauri-apps/plugins-workspace/releases/tag/updater-v2.12.0 reefs@jfrog.com
- https://github.com/tauri-apps/tauri reefs@jfrog.com
- https://github.com/tauri-apps/tauri/security/advisories/GHSA-rjc6-5hfg-grp9 reefs@jfrog.com