CVE-2026-28792Cross-Origin File Exfiltration via CORS Misconfiguration + Path Traversal in TinaCMS
Updated under an hour ago ()
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It affects @tinacms cli and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 9.7 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-22, CWE-942
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Modified
- Record last updated
- Mar 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
@tinacms cli tinacms:cli (from the name) | before 2.1.8 | CNA record |
ssw tinacms/cli ssw:tinacms/cli | before 2.1.8 | NVD |
References
- https://github.com/tinacms/tinacms/security/advisories/GHSA-8pw3-9m7f-q734x-refsource-confirm, exploit, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.