CVE-2026-95625

Tauri framework v2 missing updater signature version number validation can be exploited into forced downgrade

State
Published
Severity
5.9 Medium
Published
Sep 23, 2026
Updated
Sep 23, 2026
Reserved
Sep 22, 2026

Read the record on cve.org

Description

The Tauri updater plugin verifies update binaries using minisign signatures, but the signature covers only the raw binary bytes. The update manifest -- which contains the version number, download URL, and signature -- is fetched over TLS but is never itself signed or authenticated. Because the only anti-rollback check compares the manifest's version field against the current version, and that field is unsigned, an attacker who can serve a crafted manifest can force installation of any older signed release without possessing the developer's private key.

Scores

CVSSScoreVectorSource
3.15.9 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:NJFROG

Weaknesses

  • CWE-354 Improper Validation of Integrity Check Value

Affected Products

ProductVersions
tauri-plugin-updaterTauri
  • 2.0.0 to before 2.12.0Affected
  • 2.12.0 and laterAffected

References

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