CVE-2026-27189: Opensift

Medium severity, CVSS 5.8. EPSS: 0.1% chance of exploitation in the next 30 days.

OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Versions 1.1.2-alpha and below, use non-atomic and insufficiently synchronized local JSON persistence flows, potentially causing concurrent operations to lose updates or corrupt local state across sessions/study/quiz/flashcard/wellness/auth stores. This issue has been fixed in version 1.1.3-alpha.

Affected products

• Opensift Opensift: before 1.1.3 (fixed in 1.1.3)

Published 2026-02-21. Last modified 2026-06-17.