Categories
CVE-2026-34750

Payload has Insufficient Filename Validation in Client-Upload Signed-URL Endpoints

Summary

Payload has Insufficient Filename Validation in Client-Upload Signed-URL Endpoints

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

References

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