{"id":"CVE-2026-116071","published":"2026-10-25T12:16:29.623","lastModified":"2026-10-26T18:41:21.450","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.","cvssScore":5.9,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-916"],"vendors":[],"products":[],"references":[{"url":"https://github.com/rotki/rotki","tags":[]},{"url":"https://github.com/rotki/rotki/blob/v1.44.1/rotkehlchen/crypto.py#L17-L45","tags":[]},{"url":"https://github.com/rotki/rotki/blob/v1.44.1/rotkehlchen/data_handler.py#L263-L294","tags":[]},{"url":"https://github.com/rotki/rotki/issues/13393","tags":[]},{"url":"https://github.com/rotki/rotki/pull/13401","tags":[]},{"url":"https://github.com/rotki/rotki/releases/tag/v1.44.2","tags":[]},{"url":"https://www.vulncheck.com/advisories/rotki-before-1.44.2-weak-key-derivation-for-premium-cloud-backup-encryption","tags":[]}],"exploitRefs":[{"url":"https://github.com/rotki/rotki","tags":[]},{"url":"https://github.com/rotki/rotki/blob/v1.44.1/rotkehlchen/crypto.py#L17-L45","tags":[]},{"url":"https://github.com/rotki/rotki/blob/v1.44.1/rotkehlchen/data_handler.py#L263-L294","tags":[]},{"url":"https://github.com/rotki/rotki/issues/13393","tags":[]},{"url":"https://github.com/rotki/rotki/pull/13401","tags":[]},{"url":"https://github.com/rotki/rotki/releases/tag/v1.44.2","tags":[]}],"hasPoc":true,"ai":null}