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CVE-2026-105867

Payload: Client uploads could overwrite S3 objects PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
payloadcms / payloadaffected < 3.90.0; affected >= 4.0.0-canary.0, < 4.0.0-canary.34
@payloadcms / storage-s3affected < 3.90.0; affected >= 4.0.0-canary.0, < 4.0.0-canary.34

CWE

CWE-639

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.