CVE-2026-27189: medium-severity vulnerability in OpenSift
OpenSift: Race-prone local persistence could cause state corruption/loss
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.6epss 0.1%
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Affected products
OpenSift · OpenSiftRelated CVEs — OpenSift
In the same product, most dangerous first.
CVE-2026-28676HIGHOpenSift: Insufficient path containment checks in storage helpers could allow path traversal-style file operationsEPSS 0.5%CVE-2026-27169HIGHOpenSift: Persistent XSS Chat Tool RenderingEPSS 0.4%CVE-2026-28677HIGHOpenSift: Insufficient URL destination restrictions in ingest flow could enable SSRF-style internal accessEPSS 0.3%CVE-2026-28675MEDIUMOpenSift: Sensitive implementation details exposed via raw exception messages and token-returning endpointsEPSS 0.3%CVE-2026-27170HIGHOpenSift: SSRF risk in URL ingestion endpointEPSS 0.2%