CVE-2026-28792
Critical
Description
Tina is a headless content management system. Prior to 2.1.8 , the TinaCMS CLI dev server combines a permissive CORS configuration (Access-Control-Allow-Origin: *) with the path traversal vulnerability (previously reported) to enable a browser-based drive-by attack. A remote attacker can enumerate the filesystem, write arbitrary files, and delete arbitrary files on developer's machines by simply tricking them into visiting a malicious website while tinacms dev is running. This vulnerability is fixed in 2.1.8.
SeverityCritical
CVSS9.6
Exploit probability—
ProductSsw Tinacms\/cli
PublishedMar 12, 2026
First seenMar 12, 2026
Weakness typeCWE-22Path traversalCWE-942CWE-942
How to fix
Update
- ssw tinacms\/cli2.1.8 or later
- @tinacms/cli2.1.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ssw tinacms\/cli | v < 2.1.8 | 2.1.8 |
| @tinacms/clinpm | v < 2.1.8 | 2.1.8 |
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