SSRF in Opensift
CVE-2026-28677
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L.
EPSS exploit prediction
EPSS: 0.005 (41.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Opensift — versions < 1.6.3-alpha
Weakness classification (CWE)
References
- github.com/OpenSift/OpenSift/security/advisories/GHSA-5jfc-p787-2mf9 (Patch, Vendor Advisory)
- github.com/OpenSift/OpenSift/pull/67 (Patch, Issue Tracking)
- github.com/OpenSift/OpenSift/commit/1126e0a503876056a68a434e19f64158a5a4840b (Patch)
- github.com/OpenSift/OpenSift/commit/de99b9c (Patch)
- github.com/OpenSift/OpenSift/releases/tag/v1.6.3-alpha (Release Notes)
Frequently asked questions
- What is CVE-2026-28677?
- CVE-2026-28677 is a high-severity vulnerability in Opensift, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.2/10. Published 2026-03-06.
- How severe is CVE-2026-28677?
- High severity. CVSS v3 base score is 8.2 out of 10.