CVE-2026-116071
rotki before 1.44.2 Weak Key Derivation for Premium Cloud Backup Encryption
- State
- Published
- Severity
- 8.2 High
- Published
- Oct 25, 2026
- Updated
- Oct 29, 2026
- Reserved
- Oct 25, 2026
Description
rotki before 1.44.2 contains a weak key derivation vulnerability that allows attackers to brute-force backups because the premium sync key is a single unsalted SHA-256 of the user password. Attackers who obtain an uploaded backup blob can run GPU-parallel offline password guessing and decrypt the database containing exchange API keys, secrets, wallet addresses and transaction history.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.2 High | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-916 Use of Password Hash With Insufficient Computational Effort
Affected Products
| Product | Versions |
|---|---|
rotkirotki |
|
References
- GitHub Issue #13393issue-tracking
- https://github.com/rotki/rotkiproduct
- https://github.com/rotki/rotki/pull/13401patchissue-tracking
- https://github.com/rotki/rotki/blob/v1.44.1/rotkehlchen/crypto.py#L17-L45technical-description
- https://github.com/rotki/rotki/blob/v1.44.1/rotkehlchen/data_handler.py#L263-L294technical-description
- v1.44.2 Release Notesrelease-notes
- VulnCheck Advisory: rotki before 1.44.2 Weak Key Derivation for Premium Cloud Backup Encryptionthird-party-advisory
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