CVE-2026-28676 OpenSift: Insufficient path containment checks in storage helpers could allow path traversal-style file operations

What is CVE-2026-28676?

CVE-2026-28676 is a high-severity vulnerability in OpenSift, published on 6 Mar 2026.

Official 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, multiple storage helpers used path construction patterns that did not uniformly enforce base-directory containment. This created path-injection risk in file read/write/delete flows if malicious path-like values were introduced. This issue has been patched in version 1.6.3-alpha.

Weakness: CWE-22

Which versions are affected by CVE-2026-28676?

It affects 1 product.

Products include Opensift Opensift.

How do I fix CVE-2026-28676?

No fix has been published for CVE-2026-28676 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-28676 being exploited?

There is no known exploitation of CVE-2026-28676 in the wild and no public exploit code.

Other vulnerabilities in OpenSift

• CVE-2026-27169 OpenSift: Persistent XSS Chat Tool Rendering High 8.9
• CVE-2026-28677 OpenSift: Insufficient URL destination restrictions in ingest flow could enable SSRF-style internal access High 8.2
• CVE-2026-27170 OpenSift: SSRF risk in URL ingestion endpoint High 7.1
• CVE-2026-27189 OpenSift: Race-prone local persistence could cause state corruption/loss Medium 6.6
• CVE-2026-28675 OpenSift: Sensitive implementation details exposed via raw exception messages and token-returning endpoints Medium 5.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-ww4m-c7hv-2rqv.