{"id":"CVE-2026-93363","revision":"7ed3a415e4614cb7ac9e81e9ef9e44af","records":[{"revision":"7ed3a415e4614cb7ac9e81e9ef9e44af","observedAt":"2026-11-04T18:05:55.7+00:00","statement":{"source":"nvd","id":"CVE-2026-93363","aliases":[],"title":"The @payloadcms/storage-vercel-blob storage adapter for Payload contains an improper access control vulnerability that allows authenticated users to bypass collection-level permissions by accessing the client-upload route directly. Attacker…","description":"The @payloadcms/storage-vercel-blob storage adapter for Payload contains an improper access control vulnerability that allows authenticated users to bypass collection-level permissions by accessing the client-upload route directly. Attackers can upload files through the client-upload endpoint without possessing the required collection access permissions, circumventing the intended access control enforcement.","state":0,"publishedAt":"2026-09-25T17:17:19.157+00:00","modifiedAt":"2026-09-30T17:31:44.573+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · disclosure@vulncheck.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 3.1 · disclosure@vulncheck.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/payloadcms/payload/security/advisories/GHSA-mc8m-rr6c-r5qr","https://www.vulncheck.com/advisories/payload-cms-storage-vercel-blob-adapter-improper-access-control-on-upload-route"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93363","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-862"],"productCriteria":[],"sourceDates":{"published":"2026-09-25T17:17:19.157","lastModified":"2026-09-30T17:31:44.573"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-93363","identifiers":["CVE-2026-93363"]},"retained":false,"historicalAffected":[]}],"coverage":[]}