CVE-2026-28677

Name: CVE-2026-28677
Creator: NVD / NIST
Published: 2026-03-06T05:16:36.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2026-28677 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

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, 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.

Metrics

CVSS 3.1

8.2/10

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

EPSS Probability

0.30%

21.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Opensift	Opensift	< 1.6.3

References

https://github.com/OpenSift/OpenSift/commit/1126e0a503876056a68a434e19f64158a5a4840bPatch
https://github.com/OpenSift/OpenSift/commit/de99b9cPatch
https://github.com/OpenSift/OpenSift/pull/67Issue Tracking, Patch
https://github.com/OpenSift/OpenSift/releases/tag/v1.6.3-alphaRelease Notes
https://github.com/OpenSift/OpenSift/security/advisories/GHSA-5jfc-p787-2mf9Patch, Vendor Advisory

Timeline

Published: Mar 6, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-28677?

How severe is CVE-2026-28677?

CVE-2026-28677 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2026-28677?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-28677?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST