What is the CVSS score of CVE-2026-29066?

CVE-2026-29066 has a CVSS 3.1 base score of 6.2 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Tinacms Cli are affected by CVE-2026-29066?

Organizations using Tina should be aware of moderate risk from CVE-2026-29066, a information exposure vulnerability rated CVSS 6.2. Sensitive information could be exposed to unauthorized parties.. A patch is available.

Is there a public PoC exploit available for CVE-2026-29066?

Yes, a public proof-of-concept exploit is available for CVE-2026-29066. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-29066?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review data exposure and access controls.

Tinacms Cli CVE-2026-29066

MEDIUM

Information Exposure (CWE-200)

2026-03-12 security-advisories@github.com

GHSA-m48g-4wr2-j2h6

Information Disclosure Tinacms Cli Ssw

6.2

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.2 MEDIUM

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 19:57 vuln.today

CVE Published

Mar 12, 2026 - 17:16 nvd

MEDIUM 6.2

DescriptionGitHub Advisory

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.

AnalysisAI

Medium severity vulnerability in TinaCMS. 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

Technical ContextAI

Vulnerability Type: Information Exposure (CWE-200) CVSS 3.1: 6.2/10.0 — Attack Vector: Local | Complexity: Low | Privileges Required: None | User Interaction: None Attack Techniques: Information Disclosure Source: https://github.com/tinacms/tinacms