CVE-2026-29066
MediumPublic exploitTinaCMS CLI has Arbitrary File Read via Disabled Vite Filesystem Restriction
Published Mar 12, 2026 · Updated Aug 12, 2026 · Also known as GHSA-m48g-4wr2-j2h6
Key Facts
Routine patching- CVE-2026-29066 is a medium-severity vulnerability (CVSS 6.2 v3.1) affecting Tinacms\/cli (Ssw), @tinacms/cli (npm), cli.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 0.6% probability of exploitation in the next 30 days.
- Fixed versions are available, including @tinacms/cli 2.1.8, Tinacms\/cli 2.1.8.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
CVSS v3.1
6.2
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
0.6%
Higher than 45.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
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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 Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Tinacms\/cliSsw | See advisory | 2.1.8 |
| @tinacms/clinpm | See advisory | 2.1.8 |
| cli | >= < 2.1.8 | n/a |
Patched Releases
@tinacms/cli
2.1.8
Tinacms\/cli
2.1.8
Timeline
Publicly disclosed
Mar 12, 2026
Last updated
Aug 12, 2026
Weakness Type
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- CWE-552 Files or Directories Accessible to External Parties
References
FAQ
Common Questions.
Tina is a headless content management system.
Affected: Tinacms\/cli (Ssw); @tinacms/cli (npm); cli versions >= < 2.1.8. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including @tinacms/cli 2.1.8, Tinacms\/cli 2.1.8.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
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