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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 5
- StatusPublished → DeferredNVD modified 2026-10-26 18:41
- StatusReceived → PublishedNVD modified 2026-10-25 11:50
- StatusPublished → ReceivedNVD modified 2026-10-25 12:16
- CVSS8.2 (v4.0, 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) → 8.2 (v4.0, 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)NVD modified 2026-10-25 12:16
- First seenCVSS 8.2 · rotkiNVD modified 2026-10-25 11:50
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 7
- 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