Vulnerability · Published Mar 12, 2026 · Assigned by GitHub_M
CVE-2026-29066Arbitrary File Read via Disabled Vite Filesystem Restriction in TinaCMS CLI
Medium 6.2
In plain English
A medium-severity information exposure in cli from @tinacms. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei. Fixed versions are available - upgrade the affected package.
Official description
Tina is a headless content management system. Prior to 2.1.8, the TinaCMS CLI dev server configures Vite with server.fs.strict: false, which disables Vite's built-in filesystem access restriction. This allows any unauthenticated attacker who can reach the dev server to read arbitrary files on the host system. This vulnerability is fixed in 2.1.8.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @tinacms/cli | 2.1.8 | GHSA-m48g-4wr2-j2h6 |
Affected products (as reported)
Weakness: CWE-552, CWE-200 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- https://github.com/tinacms/tinacms/security/advisories/GHSA-m48g-4wr2-j2h6 x_refsource_CONFIRM