Vulnerability in Opensift
CVE-2026-27189
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.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L.
EPSS exploit prediction
EPSS: 0.001 (2.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Opensift — versions < 1.1.3-alpha
Weakness classification (CWE)
References
- github.com/OpenSift/OpenSift/security/advisories/GHSA-3pmp-j953-whxq (Vendor Advisory)
- github.com/OpenSift/OpenSift/releases/tag/v1.1.3-alpha (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-27189?
- CVE-2026-27189 is a medium-severity vulnerability in Opensift, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 6.6/10. Published 2026-02-21.
- How severe is CVE-2026-27189?
- Medium severity. CVSS v3 base score is 6.6 out of 10.