CVE-2026-116071

CVSS 8.2 (high) · published 2026-10-25

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.

Weakness: CWE-916

Source: NVD CVE-2026-116071

References

• https://github.com/rotki/rotki
• https://github.com/rotki/rotki/blob/v1.44.1/rotkehlchen/crypto.py#L17-L45
• https://github.com/rotki/rotki/blob/v1.44.1/rotkehlchen/data_handler.py#L263-L294
• https://github.com/rotki/rotki/issues/13393
• https://github.com/rotki/rotki/pull/13401
• https://github.com/rotki/rotki/releases/tag/v1.44.2
• https://www.vulncheck.com/advisories/rotki-before-1.44.2-weak-key-derivation-for-premium-cloud-backup-encryption

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