CVE-2026-28677: OpenSift URL ingest pipeline server-side request forgery via remote URLs

Summary

CVE-2026-28677 affects OpenSift, an AI study tool that uses semantic search and generative AI, in versions prior to 1.6.3-alpha. Its URL ingest pipeline accepted user-controlled remote URLs with incomplete destination restrictions, so private and local host checks were missing coverage for credentialed URLs, non-standard ports, and cross-host redirects, leaving SSRF-class abuse paths in non-localhost deployments. The issue is classified as CWE-918.

Mitigation

This issue has been patched in version 1.6.3-alpha.

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