What is CVE-2026-28791?

CVE-2026-28791 is a high-severity vulnerability in Tinacms, classified under Path Traversal. CVSS score: 7.4/10. Published 2026-03-12.

How severe is CVE-2026-28791?

High severity. CVSS v3 base score is 7.4 out of 10.

Path Traversal in Tinacms

CVE-2026-28791

Tina is a headless content management system. Prior to 2.1.7, a path traversal vulnerability exists in the TinaCMS development server's media upload handler. The code at media.ts joins user-controlled path segments using path.join() withou…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.001 (30.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Tinacms — versions < 2.1.7

Weakness classification (CWE)

CWE-22 — Path Traversal

References

https://github.com/tinacms/tinacms/security/advisories/GHSA-5hxf-c7j4-279c (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-28791?: CVE-2026-28791 is a high-severity vulnerability in Tinacms, classified under Path Traversal. CVSS score: 7.4/10. Published 2026-03-12.
How severe is CVE-2026-28791?: High severity. CVSS v3 base score is 7.4 out of 10.