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CVE-2026-95624

Tauri framework v2 malicious downgrade via allow_downgrades from frontend code

CVSS 3.1 6.8 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-95624

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-95624

Published

tauri-plugin-updater

https://crates.io/crates/tauri-plugin-updater

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Tauri",
                    "product": "tauri-plugin-updater",
                    "collectionURL": "https://crates.io/crates/tauri-plugin-updater",
                    "packageName": "tauri-plugin-updater",
                    "repo": "git://github.com/tauri-apps/tauri",
                    "programFiles": [
                        "plugins/updater/src/commands.rs",
                        "plugins/updater/src/config.rs"
                    ],
                    "versions": [
                        {
                            "status": "affected",
                            "version": "2.8.0",
                            "lessThan": "2.12.0",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON