CVE-2026-34750
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 products
- Amazon S3, Azure, Google Cloud Storage, Pyload, R2
- Payloadcms Payload
- < 3.78.0
- Fix
- Available
- CVSS 3.1
- 6.5 MEDIUM
- EPSS
- 0.3% (27th percentile)
- Weakness
- CWE-22
- NVD status
- Analyzed
- Published
- 2026-04-01
No indexed exploits for CVE-2026-34750 yet
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