Is CVE-2026-34750 actively exploited?

No active exploitation of CVE-2026-34750 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34750 be exploited remotely?

Yes. CVE-2026-34750 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34750?

CVE-2026-34750 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-34750

CWE-22Published: April 1, 2026· Updated: Apr 3, 2026

6.5

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:15.5th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-34750 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.5.