Cloudanix VulnDB

CVE-2026-34750

Medium · 6.5

CVSS

6.5

EPSS

0.4%

Published

Apr 1, 2026

CISA due date

—

The record

Payload is a free and open source headless content management system. Prior to version 3.78.0 in @payloadcms/storage-azure, @payloadcms/storage-gcs, @payloadcms/storage-r2, and @payloadcms/storage-s3, the client-upload signed-URL endpoints for S3, GCS, Azure, and R2 did not properly sanitize filenames. An attacker could craft filenames to escape the intended storage location. This issue has been patched in version 3.78.0 for @payloadcms/storage-azure, @payloadcms/storage-gcs, @payloadcms/storage-r2, and @payloadcms/storage-s3.

Affected packages

Ecosystem Package Introduced Fixed
npm @payloadcms/storage-azure 0 3.78.0
npm @payloadcms/storage-gcs 0 3.78.0
npm @payloadcms/storage-r2 0 3.78.0
npm @payloadcms/storage-s3 0 3.78.0

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