Cross-Origin File Exfiltration via CORS Misconfiguration + Path Traversal in TinaCMS
Published Mar 12, 2026
9.7
CRITICALCVSS 3.1
EPSS 0.63%
Description
Tina is a headless content management system. Prior to 2.1.8 , the TinaCMS CLI dev server combines a permissive CORS configuration (Access-Control-Allow-Origin: *) with the path traversal vulnerability (previously reported) to enable a browser-based drive-by attack. A remote attacker can enumerate the filesystem, write arbitrary files, and delete arbitrary files on developer's machines by simply tricking them into visiting a malicious website while tinacms dev is running. This vulnerability is fixed in 2.1.8.
Affected products
- Vendor n/a Product Cli Defaultn/a
- Version < 2.1.8StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Cli | n/a |
|
- < 2.1.8
No data.
No Red Hat product state for this CVE.
@tinacms/cli
npm
Introduced 0 Fixed 2.1.8
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | @tinacms/cli | 0 | 2.1.8 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
1 other source (GitHub) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Mar 13, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Mar–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.63% (0.00628) | 48.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00535) | 40.66th | v5 (v2026.06.15) |
| Mar 13, 2026 | 0.27% (0.00272) | 50.37th | v4 (v2025.03.14) |
References (6)
- https://github.com/advisories/GHSA-8pw3-9m7f-q734 Advisory
- https://github.com/tinacms/tinacms/commit/56d533e610a520ba66b3e58f3a0dc03487d5d5d7
- https://github.com/tinacms/tinacms/pull/6450
- https://github.com/tinacms/tinacms/releases/tag/%40tinacms%2Fcli%402.1.8
- https://github.com/tinacms/tinacms/security/advisories/GHSA-8pw3-9m7f-q734 exploitx_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-28792
Change history (0)
No recorded changes yet.