Incorrect authorization in Adobe products - CVE-2026-34646

Vulnerability identifier: #VU131226

CSH Severity: High

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-34646

CWE-ID: CWE-863

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to missing authorization checks. A remote non-authenticated attacker can modify data within the application. 

Adobe Commerce B2B
Magento Open Source
Adobe Commerce (formerly Magento Commerce)

Install updates from vendor's website.

Adobe Commerce B2B - addressed in versions 1.3.3-p18, 1.3.4-p17, 1.4.2-p10, 1.5.2-p5, 1.5.3
Magento Open Source - addressed in versions 2.4.6-p15, 2.4.7-p10, 2.4.8-p5, 2.4.9
Adobe Commerce (formerly Magento Commerce) - addressed in versions 2.4.4-p18, 2.4.5-p17, 2.4.6-p15, 2.4.7-p10, 2.4.8-p5, 2.4.9

• https://helpx.adobe.com/security/products/magento/apsb26-49.html

• Multiple vulnerabilities in Adobe Commerce and Magento Open Source