CVE-2026-28677 HIGH

CVE-2026-28677: OpenSift: Insufficient URL destination restrictions in ingest flow could enable SSRF-style internal access

Vendor Opensift
Product OpenSift
Weakness CWE-918 · SSRF
Published March 6, 2026
Last update March 6, 2026

CVSS base score

8.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

What the vulnerability does

01Description

OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Prior to version 1.6.3-alpha, the URL ingest pipeline accepted user-controlled remote URLs with incomplete destination restrictions. Although private/local host checks existed, missing restrictions for credentialed URLs, non-standard ports, and cross-host redirects left SSRF-class abuse paths in non-localhost deployments. This issue has been patched in version 1.6.3-alpha.

Key dates

02Disclosure timeline

March 6, 2026 CVE published
March 6, 2026 Record updated