OpenSift: Race-prone local persistence could cause state corruption/loss

published 2026-02-21 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-7744

cvss: 6.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 2%
public exploits: 0; none known

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.

Patch / fix

fixed in 1 links 1

opensift opensift 1.1.3

github.com/OpenSift/OpenSift/releases/tag/v1.1.3-alpha release

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 8 mo ago (2026-02-25)

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.6	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
NVD	3.1	5.8	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L

Affected products

OpenSift OpenSift

Classification

Weakness

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

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

Sources

CVE List CVE-2026-27189
NVD CVE-2026-27189

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary