CVE-2026-28675: OpenSift: Sensitive implementation details exposed via raw exception messages and token-returning endpoints

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-06 · updated 2026-06-17
Weakness: CWE-200

Description

OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Prior to version 1.6.3-alpha, some endpoints returned raw exception strings to clients. Additionally, login token material was exposed in UI/rendered responses and token rotation output. This issue has been patched in version 1.6.3-alpha.

Affected products

OpenSift: before 1.6.3 — fixed in 1.6.3

How to fix

Upgrade to a fixed version: OpenSift 1.6.3. Check the vendor advisory for mitigations.

References

https://github.com/OpenSift/OpenSift/commit/1126e0a503876056a68a434e19f64158a5a4840b
https://github.com/OpenSift/OpenSift/commit/de99b9c
https://github.com/OpenSift/OpenSift/pull/67
https://github.com/OpenSift/OpenSift/releases/tag/v1.6.3-alpha
https://github.com/OpenSift/OpenSift/security/advisories/GHSA-667g-rvcj-w976

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