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CVE-2026-116071: rotki before 1.44.2 contains a weak key derivation vulnerability that allows attackers to brute-force backups because...

Published: October 25, 2026 | Last Modified: October 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.

References

• github.com/rotki/rotki
• github.com/rotki/rotki/blob/v1.44.1/rotkehlchen/crypto.py#L17-L45
• github.com/rotki/rotki/blob/v1.44.1/rotkehlchen/data_handler.py#L263-L294
• github.com/rotki/rotki/issues/13393
• github.com/rotki/rotki/pull/13401
• github.com/rotki/rotki/releases/tag/v1.44.2
• www.vulncheck.com/advisories/rotki-before-1.44.2-weak-key-derivation-for-premium
• www.tenable.com/cve/CVE-2026-116071
• www.cnnvd.org.cn/home/globalSearch?keyword=CVE-2026-116071