Tauri framework v2 malicious downgrade via allow_downgrades from frontend code (CVE-2026-95624) | HOL Guard CVE

Medium · CVSS 6.8CVE-2026-95624

Tauri framework v2 malicious downgrade via allow_downgrades from frontend code

Answer in brief

CVE-2026-95624 records a Medium severity (CVSS 6.8) vulnerability in Tauri framework v2 malicious downgrade via allow_downgrades from frontend code. The current sources do not mark it as known exploited. The current feed maps Tauri/tauri-plugin-updater (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 22, 2026Updated Sep 22, 2026Source checked Sep 22, 2026First seen by HOL Sep 22, 2026Material review Sep 22, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Tauri/tauri-plugin-updater (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Tauri/tauri-plugin-updatergeneric	>=2.8.0 <2.12.0	2.12.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for Tauri/tauri-plugin-updater.
Review the reported fix. Update Tauri/tauri-plugin-updater to 2.12.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 22, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.