{"id":"CVE-2026-59992","sourceIdentifier":"security-advisories@github.com","published":"2026-08-19T22:16:40.600","lastModified":"2026-09-18T20:09:01.757","vulnStatus":"Deferred","cveTags":[],"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."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"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"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":2.5}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-21T16:47:38.735308Z","id":"CVE-2026-59992","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-639"},{"lang":"en","value":"CWE-862"}]}],"references":[{"url":"https://github.com/tinacms/tinacms/commit/d44558e9b4502d4f4fc2c970d22985339fe2b6ce","source":"security-advisories@github.com"},{"url":"https://github.com/tinacms/tinacms/pull/7088","source":"security-advisories@github.com"},{"url":"https://github.com/tinacms/tinacms/releases/tag/next-tinacms-s3@23.0.4","source":"security-advisories@github.com"},{"url":"https://github.com/tinacms/tinacms/security/advisories/GHSA-8mq9-5fw2-5rm4","source":"security-advisories@github.com"},{"url":"https://github.com/tinacms/tinacms/security/advisories/GHSA-8mq9-5fw2-5rm4","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}