SummaryIn JetBrains Datalore before 2026.4 missing expiration validation of account tokens allowed a new authenticated sessionRemediationInventory every JetBrains Datalore deployment, including staging.Upgrade JetBrains Datalore to 2026.4.Confirm the running version after the upgrade.ReferencesReferencehttps://www.jetbrains.com/privacy-security/issues-fixed/