CVE-2026-34750 (GCVE-0-2026-34750)

Vulnerability from cvelistv5 – Published: 2026-04-01 19:51 – Updated: 2026-04-02 15:33
VLAI
Title
Payload has Insufficient Filename Validation in Client-Upload Signed-URL Endpoints
Summary
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-02 15:33 UTC
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7933 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
payloadcms payload Affected: < 3.78.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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