CVE-2026-28793: TinaCMS Vulnerable to Path Traversal Leading to Arbitrary File Read, Write and Delete

March 12, 2026

The TinaCMS CLI development server exposes media endpoints that are vulnerable to path traversal, allowing attackers to read and write arbitrary files on the filesystem outside the intended media directory.

References

github.com/advisories/GHSA-2f24-mg4x-534q
github.com/tinacms/tinacms
github.com/tinacms/tinacms/security/advisories/GHSA-2f24-mg4x-534q
nvd.nist.gov/vuln/detail/CVE-2026-28793

Code Behaviors & Features

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