How severe is CVE-2026-27189?

CVE-2026-27189 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2026-27189 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27189?

CVE-2026-27189 affects Opensift. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27189?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-27189 have an EU (EUVD) identifier?

Yes. CVE-2026-27189 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7744.

When was CVE-2026-27189 published?

CVE-2026-27189 was published on 2026-02-21 and last updated on 2026-06-17.

CVE-2026-27189

CVE-2026-27189 is a medium-severity vulnerability in Opensift with a CVSS 3.x base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7744
Weakness: CWE-362
Affected product: Opensift
Published: 2026-02-21
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-27189?: CVE-2026-27189 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2026-27189 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27189?: CVE-2026-27189 affects Opensift. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27189?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-27189 have an EU (EUVD) identifier?: Yes. CVE-2026-27189 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7744.
When was CVE-2026-27189 published?: CVE-2026-27189 was published on 2026-02-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opensift:opensift:*:*:*:*:*:python:*:*

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