What is CVE-2026-28191?

CVE-2026-28191 is a high-severity vulnerability in Theme-One Inc. The Grid, classified under Incorrect Privilege Assignment. CVSS score: 8.8/10. Published 2026-08-18.

How severe is CVE-2026-28191?

High severity. CVSS v3 base score is 8.8 out of 10.

Privilege escalation in Theme-One Inc. The Grid

CVE-2026-28191

Subscriber Privilege Escalation in The Grid <= 2.7.9.1 versions.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Theme-one Inc. The Grid

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-28191?: CVE-2026-28191 is a high-severity vulnerability in Theme-One Inc. The Grid, classified under Incorrect Privilege Assignment. CVSS score: 8.8/10. Published 2026-08-18.
How severe is CVE-2026-28191?: High severity. CVSS v3 base score is 8.8 out of 10.