PT-2026-106800 · Payloadcms · @Payloadcms/Storage-S3
CVE-2026-105867
·
Published
2026-10-06
·
Updated
2026-10-06
CVSS v4.0
7.1
High
| Vector | 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 |
Name of the Vulnerable Software and Affected Versions
@payloadcms/storage-s3 versions prior to 3.90.0
@payloadcms/storage-s3 canary versions prior to 4.0.0-canary.34
Description
An authenticated user can overwrite an existing S3 object belonging to another upload collection. This occurs when client uploads are enabled for multiple collections sharing a bucket and the
useCompositePrefixes variable is false or unset. This action bypasses the target collection's access controls and prior file validation.Recommendations
Update @payloadcms/storage-s3 to version 3.90.0.
Update @payloadcms/storage-s3 canary to version 4.0.0-canary.34.
Exploit
Fix
IDOR
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Weakness Enumeration
Related Identifiers
Affected Products
@Payloadcms/Storage-S3