CVE-2026-27189 OpenSift: Race-prone local persistence could cause state corruption/loss
Concurrent operations in OpenSift can corrupt or lose local state data due to non-atomic persistence, requiring an upgrade to fix.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-27189?
CVE-2026-27189 is a medium-severity vulnerability in OpenSift, published on 21 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-27189?
It affects 1 product.
Products include Opensift Opensift.
How do I fix CVE-2026-27189?
No fix has been published for CVE-2026-27189 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-27189 being exploited?
There is no known exploitation of CVE-2026-27189 in the wild and no public exploit code.
Other vulnerabilities in OpenSift
- CVE-2026-27169 OpenSift: Persistent XSS Chat Tool Rendering
- CVE-2026-28676 OpenSift: Insufficient path containment checks in storage helpers could allow path traversal-style file operations
- CVE-2026-28677 OpenSift: Insufficient URL destination restrictions in ingest flow could enable SSRF-style internal access
- CVE-2026-27170 OpenSift: SSRF risk in URL ingestion endpoint
- CVE-2026-28675 OpenSift: Sensitive implementation details exposed via raw exception messages and token-returning endpoints
Sources
Also known as GHSA-3pmp-j953-whxq.