High severity7.4NVD Advisory· Published Mar 12, 2026· Updated Jun 17, 2026
CVE-2026-28791
CVE-2026-28791
Description
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() without validating that the resulting path stays within the intended media directory. This allows writing files to arbitrary locations on the filesystem. This vulnerability is fixed in 2.1.7.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
tinacmsnpm | < 2.1.7 | 2.1.7 |
Affected products
3Patches
Vulnerability mechanics
References
3- github.com/tinacms/tinacms/security/advisories/GHSA-5hxf-c7j4-279cnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-5hxf-c7j4-279cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-28791ghsaADVISORY
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