{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59992", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-07T19:41:00.005Z", "datePublished": "2026-08-19T21:30:51.975Z", "dateUpdated": "2026-08-21T16:48:12.641Z"}, "containers": {"cna": {"title": "Tina: Broken Access Control: arbitrary bucket-key write/delete in `next-tinacms-s3` (and sibling production media adapters)", "problemTypes": [{"descriptions": [{"cweId": "CWE-639", "lang": "en", "description": "CWE-639: Authorization Bypass Through User-Controlled Key", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/tinacms/tinacms/security/advisories/GHSA-8mq9-5fw2-5rm4", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-8mq9-5fw2-5rm4"}, {"name": "https://github.com/tinacms/tinacms/pull/7088", "tags": ["x_refsource_MISC"], "url": "https://github.com/tinacms/tinacms/pull/7088"}, {"name": "https://github.com/tinacms/tinacms/commit/d44558e9b4502d4f4fc2c970d22985339fe2b6ce", "tags": ["x_refsource_MISC"], "url": "https://github.com/tinacms/tinacms/commit/d44558e9b4502d4f4fc2c970d22985339fe2b6ce"}, {"name": "https://github.com/tinacms/tinacms/releases/tag/next-tinacms-s3@23.0.4", "tags": ["x_refsource_MISC"], "url": "https://github.com/tinacms/tinacms/releases/tag/next-tinacms-s3@23.0.4"}], "affected": [{"vendor": "tinacms", "product": "tinacms", "versions": [{"version": "< 23.0.4", "status": "affected"}]}, {"vendor": "tinacms", "product": "next-tinacms-s3", "versions": [{"version": "< 23.0.4", "status": "affected"}]}, {"vendor": "tinacms", "product": "next-tinacms-dos", "versions": [{"version": "< 23.0.4", "status": "affected"}]}, {"vendor": "tinacms", "product": "next-tinacms-azure", "versions": [{"version": "< 14.0.4", "status": "affected"}]}, {"vendor": "tinacms", "product": "next-tinacms-cloudinary", "versions": [{"version": "< 26.0.4", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-19T21:32:09.476Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-8mq9-5fw2-5rm4", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-8mq9-5fw2-5rm4", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-21T16:47:38.735308Z", "id": "CVE-2026-59992", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-21T16:48:12.641Z"}}]}}

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