Detections
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SCA: security update for @payloadcms/storage-vercel-blob (GHSA-mc8m-rr6c-r5qr)

medium Tenable Cloud Security Plugin ID 478341

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - The @payloadcms/storage-vercel-blob storage adapter for Payload contains an improper access control
 vulnerability that allows authenticated users to bypass collection-level permissions by accessing the
 client-upload route directly. Attackers can upload files through the client-upload endpoint without
 possessing the required collection access permissions, circumventing the intended access control
 enforcement. (CVE-2026-93363)

Solution

Update the @payloadcms/storage-vercel-blob library and its related packages to version 3.90.0 or later.

See Also

https://github.com/advisories/GHSA-mc8m-rr6c-r5qr

Plugin Details

Severity: Medium

ID: 478341

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 11/4/2026

Updated: 11/4/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N

CVSS Score Source: CVE-2026-93363

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 11/4/2026

Vulnerability Publication Date: 9/25/2026

Reference Information

CVE: CVE-2026-93363

cwe: CWE-862