Npm @payloadcms/storage-s3 vulnerabilities
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Published CVEs affecting Npm @payloadcms/storage-s3: 1 record(s), with affected versions and fixes.
CVE-2026-105867
Medium · 6.5
CWE-639 Oct 6, 2026
Payload: Client uploads could overwrite S3 objects
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.