CVE-2026-59992
Tina: Broken Access Control: arbitrary bucket-key write/delete in `next-tinacms-s3` (and sibling production media adapters)
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Tina is a headless content management system. Prior to next-tinacms-s3 23.0.4, next-tinacms-dos 23.0.4, next-tinacms-azure 14.0.4, and next-tinacms-cloudinary 26.0.4, the first-party production media adapters pass attacker-controlled object keys to storage SDK upload and delete operations without enforcing the operator's configured mediaRoot. In packages/next-tinacms-s3/src/handlers.ts, createMediaHandler accepts req.query.key for a signed PutObject URL and the DELETE path uses req.query.media as the DeleteObjectCommand key. The same missing key-boundary check exists in packages/next-tinacms-dos/src/handlers.ts, packages/next-tinacms-azure/src/handlers.ts, and packages/next-tinacms-cloudinary/src/handlers.ts. An authenticated CMS editor can therefore create or delete objects anywhere the deployment's storage credential can reach, including other tenants' or non-media objects. These issues are fixed in next-tinacms-s3 23.0.4, next-tinacms-dos 23.0.4, next-tinacms-azure 14.0.4, and next-tinacms-cloudinary 26.0.4.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |
| NVDNVD · Deferred | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |
- EPSS (exploitation in 30 days)
- 0.38% · top 68% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Weakness
Affected products
- affected < 23.0.4
- affected < 23.0.4
- affected < 23.0.4
- affected < 14.0.4
tinacms · next-tinacms-cloudinary
- affected < 26.0.4
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmnext-tinacms-azureGHSA-8mq9-5fw2-5rm4 (opens in a new tab)
- npmnext-tinacms-cloudinaryGHSA-8mq9-5fw2-5rm4 (opens in a new tab)
- npmnext-tinacms-dosGHSA-8mq9-5fw2-5rm4 (opens in a new tab)
- npmnext-tinacms-s3GHSA-8mq9-5fw2-5rm4 (opens in a new tab)
References (4)
- https://github.com/tinacms/tinacms/security/advisories/GHSA-8mq9-5fw2-5rm4 (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/tinacms/tinacms/pull/7088 (opens in a new tab)x_refsource_MISC
- https://github.com/tinacms/tinacms/commit/d44558e9b4502d4f4fc2c970d22985339fe2b6ce (opens in a new tab)x_refsource_MISC
- https://github.com/tinacms/tinacms/releases/tag/[email protected] (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-8mq9-5fw2-5rm4 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-59992)Record last updated .