How severe is CVE-2026-29066?

CVE-2026-29066 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-29066 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-29066?

CVE-2026-29066 affects Ssw Tinacms/cli. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-29066?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-29066 have an EU (EUVD) identifier?

Yes. CVE-2026-29066 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11615.

When was CVE-2026-29066 published?

CVE-2026-29066 was published on 2026-03-12 and last updated on 2026-06-17.

CVE-2026-29066

CVE-2026-29066 is a medium-severity vulnerability in Ssw Tinacms/cli with a CVSS 3.x base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-11615
Weakness: CWE-200
Affected product: Ssw Tinacms/cli
Published: 2026-03-12
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-29066?: 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.
How severe is CVE-2026-29066?: CVE-2026-29066 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-29066 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-29066?: CVE-2026-29066 affects Ssw Tinacms/cli. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-29066?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-29066 have an EU (EUVD) identifier?: Yes. CVE-2026-29066 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11615.
When was CVE-2026-29066 published?: CVE-2026-29066 was published on 2026-03-12 and last updated on 2026-06-17.

References

https://github.com/tinacms/tinacms/security/advisories/GHSA-m48g-4wr2-j2h6

Affected products (1)

cpe:2.3:a:ssw:tinacms\/cli:*:*:*:*:*:node.js:*:*

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