CVE-2026-29066

Arbitrary File Read via Disabled Vite Filesystem Restriction in TinaCMS CLI

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

@tinacms · cli

CVSS v3.1 GITHUB

6.2 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.56% chance of exploitation in the next 30 days, 45th percentile

Nuclei

medium · CWE-200

Published

2026-03-12

Updated

2026-03-13

Proof-of-concept exploits (1)

• advisories/GHSA-m48g-4wr2-j2h6

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-29066.yaml

Security advisories

• tinacms/tinacms/security/advisories/GHSA-m48g-4wr2-j2h6

References

• CVE Record
• NVD entry