{"id":"CVE-2026-105867","revision":"9f273befccc34a04865d5e5b7212d716","records":[{"revision":"9f273befccc34a04865d5e5b7212d716","observedAt":"2026-10-25T04:17:41.466+00:00","statement":{"source":"nvd","id":"CVE-2026-105867","aliases":[],"title":"Payload is a free and open source headless content management system. In @payloadcms/storage-s3 versions before 3.90.0 and canary versions before 4.0.0-canary.34, an authenticated user can overwrite an existing S3 object belonging to anothe…","description":"Payload is a free and open source headless content management system. In @payloadcms/storage-s3 versions before 3.90.0 and canary versions before 4.0.0-canary.34, an authenticated user can overwrite an existing S3 object belonging to another upload collection when client uploads are enabled for multiple collections sharing a bucket and useCompositePrefixes is false or unset. This bypasses the target collection's access controls and prior file validation. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","state":0,"publishedAt":"2026-10-06T17:17:23.137+00:00","modifiedAt":"2026-10-15T00:07:52.077+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/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":7.1,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/payloadcms/payload/commit/2df8238fbf17edfce335c399b90bf524ba9906a2","https://github.com/payloadcms/payload/releases/tag/v3.90.0","https://github.com/payloadcms/payload/security/advisories/GHSA-7vg8-29qx-jgj8"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-105867","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-639"],"productCriteria":["cpe:2.3:a:payloadcms:payload:*:*:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary0:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary1:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary10:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary11:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary12:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary13:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary14:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary15:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary16:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary17:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary18:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary19:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary2:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary20:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary21:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary22:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary23:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary24:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary25:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary26:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary27:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary28:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary29:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary3:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary30:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary31:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary32:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary33:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary4:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary5:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary6:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary7:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary8:*:*:*:node.js:*:*","cpe:2.3:a:payloadcms:payload:4.0.0:canary9:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-10-06T17:17:23.137","lastModified":"2026-10-15T00:07:52.077"},"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-2026-105867","identifiers":["CVE-2026-105867"]},"retained":false,"historicalAffected":[]}],"coverage":[]}